Term of the day -- "Macro Tourists"

I came across this pejorative in this very sharp Barry Ritholtz post then followed a link to get to this definition from a very funny piece by Joe Weisenthal:

"Macro Tourists" is a phrase that was coined by former policy economist and global macro trader Mark Dow to characterize investors who left their comfort zone to make big pronouncements about how macroeconomics really works.

It might be interesting to come up with analogues in other fields. Perhaps Joseph has some examples from epidemiology.