This is from a Google Hangout with Daniel Larimer. He starts talking about the issues with Bitcoin mining and PoW at 1:01:20 and goes until 1:03:44. Only a few minutes long.

https://www.youtube.com/watch?v=tBcJ5rsAGaI

Seems to me like he's bringing up some pretty serious flaws here. He later goes on to say that PoW is dead and Bitcoin will have to change at some point. Any thoughts?

Thanks!