US population has more than tripled since 1929.

are "unemployed people" and "not currently looking for work" comparable measures, or where there man more people "not looking for work" in 1929? (most women, for example?)

https://en.wikipedia.org/wiki/Unemployment_in_the_United_Sta... suggests that many of those 100million are relatively old or not interested in jobs even if jobs were on offer.

A lot of those 100 million are elderly, children, or permanently disabled. There's a reason we count unemployed in a different manner than just "not currently looking for work."

Don't just regurgitate Trump's tweets: http://www.politifact.com/truth-o-meter/statements/2013/jul/...