2022-09-28: Why Is 1/137 One of the Greatest Unsolved Problems In Physics?
13:15: ... it could be that the fine structure constant is not a physical constant, but a mathematical one, like pi, but perhaps we haven't realized this is ...
2017-09-28: Are the Fundamental Constants Changing?
03:05: In fact, it may be impossible to interpret changes in any physical constant that has units.