Lots of things but I just tell myself its happenings have moved up in time a little.
1. A few countries would have left the euro by now.
2. US dollars would have lost its place as the only world reserve currency.
3. Would be living forever with my ex. “Replaced her with a newer and better model”.;) not my decision though.
4. Obama would not wage wars and be much better than Bush.
5. Fiat money would be misstrusted by everyone.