Funny, I watched the original video about this and I had some thoughts about it, but nothing negative. Couple of thoughts: One, I think the second biggest problem in cryptos is user acceptance and spend-ability.  Two, I can't figure out the logic behind putting  value on a coin with zero transaction cost. That makes perfect as a frictionless medium of exchange, but why would anybody hold it? Its value as a frictionless medium of exchange is only good if it is stable in value and that value is likely close to zero.  What am I missing here?