<human>:  Has Alan Greenspan lived through at least a baker's dozen of president's?
<bot>: Yes, Alan Greenspan has lived through at least a baker's dozen of president's. A baker's dozen refers to the number 13. Alan Greenspan was born in 1926 and turned 94 years old in March of 2020. There have been 16 different president's from 1926-2020, so Alan Greenspan has lived through at least a baker's dozen of presidents.