I'm a fan of the ezra klein show, but this is probably the worst episode. I vaguely remember a torrent of nonsense from someone whose job it is to make cryptocurrency sound good with basically no pushback.
IMHO, the rebuttal episode w/ Dan Olson, 6 months later, was spot on:
The Most Thorough Case Against Crypto I've Heard https://www.stitcher.com/show/the-ezra-klein-show-2/episode/...