[ChicagoBoy11]

I looked up the actual figures after posting -- seems London has about 5x as many international visitors, so you are absolutely right.

But, I think in Rio there is also an argument to be made of how many of those "estimated" visitors are actually simply displacing people who would otherwise have travelled to Rio. To your point, if Rio is in fact no set-up to accommodate as many people as London, then a lot of the effect of the games will simply be substituting regular travelers with Olympics watchers.

Either way -- the only point I guess I was really trying to make was that the variable of interest is the delta in the actual visitors to Rio -- you want an economist making this argument, not a health expert

[chatwinra]

"you want an economist making this argument, not a health expert"

You probably want both.

[ececconi]

Most people are probably going to stay at Air BnBs. There literally aren't enough hotels there to support the influx of people there. It was a mess during the world cup and that was held throughout the entire country. The only place I could find to stay during the world cup there was an overpriced AirBnb.

It was totally worth it, but I've been wondering since how the hell the city is going to handle that many people there at once.