Comments, observations and thoughts from two bloggers on applied statistics, higher education and epidemiology. Joseph is an associate professor. Mark is a professional statistician and former math teacher.
Friday, March 19, 2021
When we said drones will revolutionize the industry, we should have been more specific
Thursday, March 18, 2021
The story is "Tesla has one message for customers and investors, and another one for legal authorities." The meta-story is that the bastion of conventional wisdom is telling this story.
Did you know that Tesla is the first automaker to announce both purchase and subscription options for a product that doesn't exist?
— E.W. Niedermeyer (@Tweetermeyer) March 2, 2021
What is your preferred method of paying for things that aren't even actual things yet? #content
Part 2: These are clips from a 28-minute drive.
— Taylor Ogan (@TaylorOgan) March 16, 2021
There’s a difference between, “The software will get better when the NN has way more data,” vs. hardware ceiled Level 2 ADAS, as even Tesla now admits.
Tesla robotaxi dreamers will have to wait for cars with the proper HW. pic.twitter.com/4RBXCAcNcD
Regardless of where it's reported, this is big news (and potentially grounds for one hell of a class action lawsuit). Still, it's worth noting that highly skeptical coverage of Tesla and Musk is no longer limited to a few voices in the wilderness like Lopez of Business Insider and Hiltzik and Mitchell of the LA Times.
Tesla recently told California regulators that the "Full Self-Driving" beta software it's testing with select customers doesn't make them autonomous — nor will it any time soon.
Why it matters: The company is charging $10,000 extra for the not-really-self-driving, might-arrive-someday addition to its standard Autopilot adaptive cruise-control and lane-keeping feature.
- Meanwhile, CEO Elon Musk is selling investors on the notion that its full self-driving tech will enable Teslas to become money-generating robotaxis.
Our thought bubble: Tesla has one message for customers and investors, and another one for legal authorities.
Catch up quick: Legal transparency website PlainSite this week released a year's worth of correspondence between Tesla lawyers and the California Department of Motor Vehicles, which regulates autonomous vehicles.
- The agency had been pressing Tesla for details about the technology's evolving capability since late 2019 while reminding the company that it does not have a permit to deploy autonomous vehicles in California.
Wednesday, March 17, 2021
I love LA... Penultimate Snow
Last week and this past Monday, the weather included some late winter storms, very probably the last of the year. The snow line got down to twenty-five hundred feet. To put that in perspective, the highest point in the city of LA is just over five thousand feet and highest point in the county is just over over ten.
My standard joke about LA is that we have all the weather you could want; we just drive to it, so this weekend, I headed up the Angeles Crest not far from my place to catch the last snow of the season. Next year, when traveling won't feel so risky, I'll get a cabin and do some hiking. For now, though, these views will have to hold me.
Tuesday, March 16, 2021
Vaccine nuance
This is Joseph.
Are all covid-19 vaccines precisely equal? No. Should you care very much which one you get? Also no. This seems like a contradiction until we think it through.
Prior to the reporting of any phase 3 trials, the pre-specified efficacy for a useful vaccine was often cited as 50%. Here is an NPR story discussing this prior to Pfizer results. It is worth noting, as Bill Miller states, that even a weak vaccine likely reduces severity:
"That's certainly the case with the influenza vaccine," Miller adds. "People who get the vaccine may still get the flu, but, for the most part, their disease is milder than if they hadn't had the vaccine."
So how do the US vaccines stack up to this standard? For the trial endpoints, Pfizer is 95%, Moderna is 94%, and Johnson and Johnson is 72%. Even the lowest efficacy vaccine is almost exactly at the 75% Dr. Fauci pre-specified as what he was hoping for, even if he was unsure it was realistic. Further, there are other trade-offs between the vaccines, including price, storage requirements, or number of doses. The lower efficacy option has better storage properties, is cheaper and is only a single dose. The newer vaccines that might yet be approved also look good, AstraZeneca is 70% and Novavax is 89%, so there are a growing number of options far more effective than the pre-specified level needed for a useful vaccine.
Based on this, there are only safe and effective options available in the United States. I suppose that there might be some customer preferences, but everything is safe and works, based on the trial data.
So what can real world evidence add?
Well, we can try to find rare side effects. There was some concern about the AstraZeneca vaccine (not available in the US) and blood clots, at least until people noticed that the rate was lower than would be expected by chance. One of the sanest voices in the pandemic points out that this might be lower than by chance:
Professor Sir David Spiegelhalter, a statistician from the University of Cambridge, urged caution over the decision to pause the AstraZeneca vaccine rollout in some countries, saying it could be doing "more harm than good".
But it is important to monitor for problems. For example, if there were big ones with the Pfizer vaccine then you'd expect Israel to have noticed by now. Spoiler: there weren't any.
We can also measure the population level effects on disease. So we know that the AstraZeneca (AZ) vaccine appears to reduce population rates of hospitalization by 95%, which was higher than that seen post-vaccination by Pfizer, at 84% (this was based on 1.14 million vaccinations in Scotland) -- although this was mostly comparing single dose Pfizer to single dose AZ (results could differ after 2 doses). Both vaccines are mitigating the human cost of the pandemic, which is the reason the pandemic was a crisis to begin with.
So how does this all link together? All of the evidence suggests all of the vaccines are good. Scotland's real world evidence muddies the waters as to the precise rank ordering (as it is unlikely that the populations being vaccinated were terribly different) but that doesn't change the underlying message: none of the vaccines is showing concerns as to safety or efficacy. I would gladly be randomized to any of the three US available options or to AZ. Even if it was done with a biased die.
Finally, if I did have to do any sort of prioritization then I would do it via focusing on high risk populations. Give the mRNA vaccines to older and minority groups, who suffer more from the disease. Focus the adenovirus vaccines on the young and high SES crowd. That said, vaccines in arms is the most important variable and every person vaccinated does make the community, as a whole, safer.
Looking at Mar 15 data, you would rather be the US (21% with 1+ dose), Israel (57% with 1+ dose), or the UK (37% with 1+ dose) and not somebody like Canada (4.7% with 1+ dose). And the number of doses given is vastly more important than the type of vaccine used, provided it is one of the five above with extensively reported phase three clinical trial data.
Monday, March 15, 2021
If David Wallace-Wells was all that concerned about vaccine hesitancy, maybe he shouldn't have promoted the myth of a West Hollywood autism epidemic
What If Herd Immunity Is Out of Reach? [emphasis added]
A few months ago, these developments might have suggested the true endgame of the pandemic was in sight—and indeed the likely vaccination of 100 million or more by late spring does suggest a dramatic change in the country’s experience of the disease, with those vaccinated feeling safe from hospitalization and death and the disease in retreat. But thanks to a combination of higher herd-immunity estimates, stubbornly high vaccine “hesitancy,” and the arrival of new coronavirus variants that render existing vaccines less effective, the second year of the American pandemic is beginning to look less like a page-turning, book-slammed-shut bang and more like a long and indefinite whimpering into the future — in which many are protected but the disease, undefeated, still circulates, perhaps forever. That the coronavirus would become endemic, like the common cold, has always been one possible outcome, though less appealing than true elimination. The arrival of new variants has made that kind of near-term future, with enduring reservoirs of virus throughout the country, seem less appealing still.
Who do we know with a history of spreading anti-vaxxer talking points?
Tuesday, July 18, 2017
David Wallace-Wells, autism and bad science
David Wallace-Wells has been catching a lot of flack (most of it richly deserved) for his recent New York Magazine article on climate change. It is a hugely troubling sign when the very scientists you were claiming to represent push back against your article.This controversy illustrates a larger problem with science reporting at the magazine. We already have a post in the queue discussing the neutral-to-credulous coverage of topics ranging from homeopathy to magic crystals to Gwyneth Paltrow's goop empire. The Wallace-Wells piece takes things to another level and goes in a very different but arguably worse direction. Rather than giving bad science a pass, he takes good science and presents it so ineptly has to do it a disservice.
I am not going to delve into that science myself. The topic has been well covered by numerous expert and knowledgeable writers [see here and here]. The best I could offer would be a recap. There are some journalistic points I may hit later and I do want to highlight a minor detail in the article that has slipped past most critics, but which is perfectly representative of the dangerous way Wallace-Wells combines sensationalism with a weak grasp of science.
Other stuff in the hotter air is even scarier, with small increases in pollution capable of shortening life spans by ten years. The warmer the planet gets, the more ozone forms, and by mid-century, Americans will likely suffer a 70 percent increase in unhealthy ozone smog, the National Center for Atmospheric Research has projected. By 2090, as many as 2 billion people globally will be breathing air above the WHO “safe” level; one paper last month showed that, among other effects, a pregnant mother’s exposure to ozone raises the child’s risk of autism (as much as tenfold, combined with other environmental factors). Which does make you think again about the autism epidemic in West Hollywood.
No, David, no it doesn't.
I want to be painstakingly careful at this point. These are complex and extraordinarily important issues and it is essential that we do not lose sight of certain basic facts: by any reasonable standard, man-made climate change is one of the two or three most important issues facing our country; the effect of various pollutants on children's mental and physical development should be a major concern for all of us; high ozone levels are a really bad thing.
But the suggestion that ozone levels are causing an autism epidemic in West Hollywood is both dangerous and scientifically illiterate. You'll notice that I did not say that suggesting ozone levels cause autism is irresponsible. Though the study in question is outside of my field, the hypothesis seems reasonable and I do not see any red flags associated with the research. If Wallace-Wells had stopped before adding that last sentence, he would've been on solid ground, but he didn't.
Autism is frightening, mysterious, tragic. This has caused people, particularly parents facing one of the worst moments imaginable, to clean desperately to any explanation that might make sense of their situation. As a result, autism has become a focal point for bad science, culminating with the rise of the anti-vaccination movement. There is no field where groundless speculation and fear-mongering are less welcome.
So, if ozone and other pollutants may contribute to autism, what's so bad about the West Hollywood claim? For that, you need to do some rudimentary causal reasoning, starting with a quick look at ozone pollution in Southern California.
Here are some pertinent facts from a 2015 LA Times article:
EPA Administrator Gina McCarthy selected a limit of 70 parts per billion, which is more stringent than the 75 parts-per-billion standard adopted in 2008 but short of the 60-ppb endorsed by environmentalists and health advocacy groups including the American Lung Assn. The agency’s science advisors had recommended a limit lower than 70 -- and as low as 60.
...
About one-third of California residents live in communities with pollution that exceeds federal standards, according to estimates by the state Air Resources Board.
Air quality is worst in inland valleys, where pollution from vehicles and factories cook in sunlight to form ozone, which is blown and trapped against the mountains.
The South Coast air basin, which includes Los Angeles, Orange, Riverside and San Bernardino counties, violated the current 75-ppb ozone standard on 92 days in 2014. The highest ozone levels in the nation are in San Bernardino County, which reported a 2012-2014 average of 102 parts per billion.
Now let's look at some ozone levels around the region. West Hollywood, it should be noted, is not great.
But just over the Hollywood Hills, the situation is even worse.
Higher still in Riverside ...
Though still far short of what we find in San Bernardino.
If you look at autism rates by school district and compare them to ozone levels, it is difficult to see much of a relationship. Does this mean that ozone does not contribute to autism? Absolutely not. What it shows is that, as with many developmental and learning disabilities, the wealthy are overdiagnosed while poor are underdiagnosed. It is no coincidence that a place like Santa Monica/Maibu (a notorious anti-vaxxer hotspot) has more than double the diagnosis rate of San Bernardino.
The there's this from the very LA Times article by Alan Zarembo that Wallace-Wells cites [emphasis added]:
Irva Hertz-Picciotto, an epidemiologist at UC Davis, suspects that environmental triggers such as exposure to chemicals during pregnancy play a role. In a 2009 study, she started with a tantalizing lead — several autism clusters, mostly in Southern California, that her team had identified from disability and birth records.
But the hot spots could not be linked to chemical plants, waste dumps or any other obvious environmental hazards. Instead, the cases were concentrated in places where parents were highly educated and had easy access to treatment.
Peter Bearman, a sociologist at Columbia University, has demonstrated how such social forces are driving autism rates.
Analyzing state data, he identified a 386-square-mile area centered in West Hollywood that consistently produced three times as many autism cases as would be expected from birth rates.
Affluence helped set the area apart. But delving deeper, Bearman detected a more surprising pattern that existed across the state: Rich or poor, children living near somebody with autism were more likely to have the diagnosis themselves.
Living within 250 meters boosted the chances by 42%, compared to living between 500 and 1,000 meters away.
The reason, his analysis suggested, was simple: People talk.
They talk about how to recognize autism, which doctors to see, how to navigate the bureaucracies to secure services. They talk more if they live next door or visit the same parks, or if their children go to the same preschool.
The influence of neighbors alone accounts for 16% of the growth of autism cases in the state developmental system between 2000 and 2005, Bearman estimated.
In other words, autism is not contagious, but the diagnosis is.
Friday, March 12, 2021
This is getting dumb
This is Joseph
Matt Yglesias commenting on the NYT:
Also noted by Alex Tabbarok:
AZ has on the order of 50 million doses nearly ready to go and can produce in the US around 25 million doses a month so over a year that production is worth over $100 billion to the world economy, far higher than the modest cost of production! Instead of idling this capacity we should expand it even further as part of a plan to vaccinate the world.
I think we need to have a very careful reality check. What could possibly be the reason for not allowing the export of the vaccine? People keep pointing out that Astra-Zeneca has not done the paperwork for an emergency use authorization, but what is the point of letting it sit unused when the company would like to export it.
If it works, why would the United States not want to use it? If it is inferior to current vaccines why should we deny it to countries dealing with large outbreaks? I understand not immediately authorizing it because the US has vaccines with good data already approved but then it should be exportable. I also understand wanting to use it domestically to speed up vaccination rates but then there should be hard questions asked about why the company is not applying to the FDA.
But the current course of action seems to make no actual sense. What am I missing? What is the value in letting the doses expire due to an export ban?
Defunding the police
Thursday, March 11, 2021
The sad part is this actually makes the first one look rational...
There was at least an initial logic to the first Gamestop bubble. If successfully executed, it is possible to make a great deal of money out of a short squeeze. This time, however, we are in pure delusional money territory.
“It’s a marathon, not a sprint. Whatever happens resist the urge to sell. The longer we hold the higher it goes,” said @catchme1fyoucan, an Italy-based user of retail trading platform eToro, in a discussion on GameStop.
For many, perhaps most, of the investors this time around, the lesson of the first bubble was exactly the wrong one. They believe they drove the stock up because of the rightness of their cause and the power of their will, and the only reason it went back down was a loss of faith.
The details of this surge don't do much to help clear things up for us non-believers.
One explanation was a tweet from activist investor Ryan Cohen, who is a major shareholder in GameStop and was appointed as a board member as part of an attempt to reverse the company’s ailing fortunes.
Mr Cohen is known as “Papa Cohen” on the Reddit forum, and is known to have a significant holding in the company. That means that his tweets have a particular pull for those who follow the stock – even if they might be largely incomprehensible to others.
One such tweet was posted by Mr Cohen on Wednesday evening. It showed a McDonald’s ice cream cone and was accompanied by a frog emoji.
Soon after that post, the shares began to surge. It is impossible to say definitively whether there is any connection between the stock price and Mr Cohen’s tweet, but it at least focused new attention on the GME shares.
In case you were wondering if the description leaves something out...
While we don't want to push the analogy too far, we live in a time of movements based on finding hidden messages in cryptic tweets. By the QAnon standard, buying Gamestop at $265 hardly seems crazy at all.
As I type this, it is snowing in the City of Los Angeles
At least in the parts above 2,500 feet. The highest point in the city is just over 5,000 feet so the snow line will cover a lot of square miles, even more in the eastern part of the county. The mountains will be beautiful.
Wednesday, March 10, 2021
With high flying stocks, most buy arguments are actually sell arguments
In the annals of investing literature, there are a few lessons which stick out. But perhaps none more so than the adage that at the right price, every asset is potentially a good investment. Even subprime CDOs. The flip side of this axiom is, of course, that if you pay too much the experience can be a painful one....At the turn of the new millennium, the IT hardware, software and networking equipment company was one of the hottest stocks in the US equity market. From the beginning of 1999 to March 2000 the shares rose 236 per cent to a market capitalisation of $555bn, or $80.06 per share, backed by a crazed-enthusiasm for the technological shifts bought about by the internet. The thesis was solid: as a provider of networking equipment for both telecom players and other businesses, Cisco was the shovel-seller in a dot com gold rush. What could go wrong?And, some might argue, it had the numbers to back it up. In the 2000 financial year, Cisco posted revenue growth of 55 per cent, gross margins of 66 per cent and had a return-on-equity of 14 per cent. Sure, top-line growth had slowed from 1994 when revenue had doubled, but as one of the few players sitting at the intersection of several technological trends, it surely was going to be one of the big winners of the new millennium.Well yes and no. In one way, investors were right. Cisco was a big winner. Over the next 21 years, Cisco’s revenues grew four fold to $49bn, with profits quintupling to $11bn. Return-on-equity even improved, with the figure averaging 17 per cent over the next two decades, 3 percentage points above its 2000 number.The problem was the share price. It was, simply, too damn high. At the March 2000 peak, Cisco’s price-to-earnings ratio stood at 201 times, its enterprise value to sales at 31 times and its price-to-free cash flow at 176 times. By anyone’s standards, the valuation was over-egged.And, suddenly, everyone cottoned on. Over the next two years, Cisco’s share price collapsed 80 per cent, a total market capitalisation loss of $431bn, as the dot com bubble deflated and telecom capital expenditure with it. Twenty-odd years later at pixel time, Cisco’s shares are at $46.25, still 42 per cent below their dot com peak.
Imagine a stock analyst in 2000 who sat down with Louis Rukeyser and laid out a scenario for Cisco that was completely prescient. The case would sound spectacularly bullish. The company really did have a long and profitable future ahead of it. In the context of Cisco's peak price, however, this would have been anything but a case for going all in. When a stock is flying that high, what would normally be a buy argument more often than not becomes a sell argument.
Alex Wilhelm writing for TechCrunch:
Using normal accounting rules, Uber lost $6.77 billion in 2020, an improvement from its 2019 loss of $8.51 billion. However, if you lean on Uber’s definition of adjusted EBITDA, its 2019 and 2020 losses fall to $2.73 billion and $2.53 billion, respectively.
Despite this, Uber has a market cap of over $100 billion. Its spokespeople and shills will argue that the company is about to become profitable but even if it does go into the real black (and not just the creative accounting black), no one is offering a convincing scenario where the stock is worth more than a fraction of its current price;
A lot of investors, particularly retail investors, operate under the assumption that if you like a company and have faith in it, you should buy. They ignore Powell's basic lesson that any investment is a bad investment beyond a certain price and, as he points out, sooner or later someone is in for a painful experience.
Tuesday, March 9, 2021
The self-proclaimed "next Warren Buffett" is perfect for the age of Trump and Musk
These are the kinds of charlatans who show up when Wall Street gets weird
King of wishful SPAC-ing
There are a few ways to tell if the person you are listening to is a bubble charlatan. For one thing, they can't handle criticism of themselves or their product. Debate — one of the most important elements of price discovery — is not tolerated. To them, short sellers are market villains. They also dislike traditional valuation metrics, regulators who put guardrails around trading or promoting, and — to ingratiate themselves with retail investors — other rich people.
You can also find them shilling free advice on social media and constantly calling into CNBC to rant.
Chamath Palihapitiya, founder of the now defunct venture-capital firm Social Capital, is skilled at all of those things. His success stems mainly from being at Facebook early. Since then he has perfected the art of raising money from people who should know better, and teasing a run for governor of California.
...
Did I mention that Palihapitiya hates short sellers?
About the time Lopez hit send on her piece, Palihapitiya's most hyped SPAC reached what we might call the post-pump stage.
. @chamath dumped > $200mm of $spce yesterday whilst it was in free fall 💎💎💎💎💎 pic.twitter.com/rAORoW5XQH
— luis carruthers (@orthereaboot) March 5, 2021
"Some" shares in $SPCE. I.e. every single one of them. Gaslighting clown. @chamath https://t.co/Jw7m4EF2jD pic.twitter.com/HlPRHlhGED
— Keubiko (@Keubiko) March 6, 2021
Remember to live, laugh and love to lose money in this dude’s SPACs after he’s exited them. https://t.co/P4a8tdbQJT
— Linette Lopez (@lopezlinette) March 6, 2021
Monday, March 8, 2021
A small point on Kevin Drum
No, it wouldn't turn us into a "papers please" police state. No, it wouldn't do anything that we haven't already done in a chaotic way already.
Like this case here of a passenger in a car being arrested for not showing ID at a traffic stop. Similarly, there are already stop and identify laws. I am not sure that a secure national id would do anything to make this situation worse and would be a nice way to get around issues like name conflicts in e-verify.
Just imagine what they could have done with blockchains -- a proto-SPAC repost
Michael Hiltzik writing for the LA Times:
Someone on Wall Street ought to erect a statue to Henry Villard.
Villard made the discovery that if you don’t tell investors how you’re going to spend their money, they get more eager, not less.
Seeking to raise several millions of dollars in capital to take over a company but unwilling to reveal his target for fear of driving its price beyond his reach, Villard sent out a prospectus for a “blind pool,” stating that he would reveal “the exact nature” of his plans 90 days hence.
Rather to his surprise, his pool was sold out within 24 hours; indeed, investors bid for twice what he was asking. “All wanted more,” he recalled.
The year was 1881. Villard’s quarry was the Northern Pacific Railroad, with which he hoped to build a railroad network to the Pacific Northwest.
But what makes his scheme relevant is that the same principle of raising money via a blank check has become the latest craze sweeping Wall Street....
All would be well-advised to consider the ultimate fate of Henry Villard. As he neared the apogee of success, he built a landmark residence on New York’s Madison Avenue, designed by Stanford White, that is still remembered as the Villard Houses.
One night after he moved in, he was visited by a delegation of investors and auditors who informed him he was bankrupt. He and his family vacated the residence, which was sold to Whitelaw Reid, publisher of the New York Tribune.
Much later it served as the facade of the 55-story Helmsley Palace Hotel, where the society figure Leona Helmsley reigned until her conviction for tax evasion in 1989. The hotel passed into the ownership of the Sultan of Brunei, who eventually sold it to a South Korean resort firm that operates it today.
Villard had one more brush with greatness. In 1887 he was invited to resume the presidency of the Northern Pacific but drove it into receivership by loading it with extortionate loans to himself.
But with all due respect to Villard, he was by no means the first.
Wednesday, July 26, 2017
"A company for carrying on an undertaking of great advantage, but nobody to know what it is."
Another excerpt from Charles Mackay's Extraordinary Popular Delusions and the Madness of Crowds. I believe "a company for carrying on an undertaking of great advantage, but nobody to know what it is" was an initial business plan for Groupon.Some of these schemes were plausible enough, and, had they been undertaken at a time when the public mind was unexcited, might have been pursued with advantage to all concerned. But they were established merely with the view of raising the shares in the market. The projectors took the first opportunity of a rise to sell out, and next morning the scheme was at an end. Maitland, in his History of London, gravely informs us, that one of the projects which received great encouragement, was for the establishment of a company "to make deal-boards out of saw-dust." This is, no doubt, intended as a joke; but there is abundance of evidence to show that dozens of schemes hardly a whir more reasonable, lived their little day, ruining hundreds ere they fell. One of them was for a wheel for perpetual motion—capital, one million; another was "for encouraging the breed of horses in England, and improving of glebe and church lands, and repairing and rebuilding parsonage and vicarage houses." Why the clergy, who were so mainly interested in the latter clause, should have taken so much interest in the first, is only to be explained on the supposition that the scheme was projected by a knot of the foxhunting parsons, once so common in England. The shares of this company were rapidly subscribed for. But the most absurd and preposterous of all, and which showed, more completely than any other, the utter madness of the people, was one, started by an unknown adventurer, entitled "company for carrying on an undertaking of great advantage, but nobody to know what it is." Were not the fact stated by scores of credible witnesses, it would be impossible to believe that any person could have been duped by such a project. The man of genius who essayed this bold and successful inroad upon public credulity, merely stated in his prospectus that the required capital was half a million, in five thousand shares of 100 pounds each, deposit 2 pounds per share. Each subscriber, paying his deposit, would be entitled to 100 pounds per annum per share. How this immense profit was to be obtained, he did not condescend to inform them at that time, but promised, that in a month full particulars should be duly announced, and a call made for the remaining 98 pounds of the subscription. Next morning, at nine o'clock, this great man opened an office in Cornhill. Crowds of people beset his door, and when he shut up at three o'clock, he found that no less than one thousand shares had been subscribed for, and the deposits paid. He was thus, in five hours, the winner of 2,000 pounds. He was philosopher enough to be contented with his venture, and set off the same evening for the Continent. He was never heard of again
Friday, March 5, 2021
He's gotta a great big house on the cliffside, 'nother great big house beside it
Back in '88, having side by side swimming pools seemed an absurd example of wretched excess. If only we'd known.
WhatsApp co-founder Jan Koum just grabbed another slice of Malibu shoreline, paying $87 million for an oceanfront home right next to his other one, The Times has confirmed.
The billionaire has been on a Southern California spending spree for the last three years. In 2019, he paid $100 million for the Malibu home of longtime NBCUniversal executive Ron Meyer. A year later he ventured inland, shelling out $125 million for the Beverly Hills mansion of Quibi founder Jeffrey Katzenberg.
The $87-million sale, which was first reported by the Wall Street Journal, is by far the priciest home sale in L.A. County so far this year. The property originally was put on the market last summer for $125 million, The Times previously reported.
Thursday, March 4, 2021
Tesla, the Sinatra of car companies
To add to this, I was able to safely get back in my intended lane after disengagement due to the tight handling & quick acceleration. Thank you for making the safest cars in the world. 🙏
— Marge ♡ (@Manic_Marge) February 25, 2021
Rear camera view pic.twitter.com/pe2E2RFXIg
— Marge ♡ (@Manic_Marge) February 25, 2021
So, the situation is that the Tesla’s owner was driving along the I-5 North in Los Angeles, with Autopilot engaged, when a truck changed lanes in front of the Tesla, to which the Tesla reacted by maintaining its speed and crossing over the unbroken white line that marks where the highway divides between the I-5 North and the 101 North, putting the car onto the 101 North instead of its intended path.The Tesla owner refers to the truck as “changing lanes last minute” and that the actions of the car “saved my life” and that Autopilot is “life saving tech.”My problem here is that any human driver would have seen that the truck had its turn indicator on, and was making a pretty normal lane change. You can see the turn indicator blinking from the very start of the dashcam clip; the truck was clearly intending to change lanes, and I don’t see how you’d call it “last minute” unless you just started paying attention as it began actually changing lanes.We’ve all been in this exact same situation, and we’ve all done the same thing: let off the gas a bit to slow down slightly, and let the truck change lanes in front of us. It’s trivial, really. For most drivers, you can’t even remember how many times you’ve done this.You just slow down a bit. Not a brake stomp, just a slight slowing to let the truck in. No biggie.Stubbornly maintaining the same speed and ignoring the truck that is clearly signaling a lane change until it actually begins to move into the lane, as Autopilot did, is just bad driving; plus, Autopilot put the car onto the wrong freeway for the driver’s destination, which she did note she corrected in another tweet: