It only work if you have a "good" passport and you can pack your income source and move it (i.e. easier for a web page designer than a goat farmer).

Sure, but some people would get out, right?

Surely you aren’t saying that because prediction markets can’t save every single life, that it’s somehow useless to save a few.

Another example, if odds jump on a missile strike on a particular city, you might have the chance to move out of the way.