1-I believe it, but I still want to see some sources

2-GDP (while NOT worthless) can only tell us so much and can easily be misconstrued into "all wealth ever" by those who don't understand it

3-What about off-shore tax havens? I don't have any data on hand, but I feel like a decent chunk of that 50% rests in accounts in places like Ireland, Singapore, or the Cayman Islands

4-Curious to see how California alone would affect this data

5-"Oh, people can come up with statistics to prove anything, Kent. 14% of people know that" --Homer Simpson