A more recent video that was quite fun to watch. https://youtu.be/5f9s7HibZj8

Joe points out some flaws in his thinking, e.g. the decreasing incentives to selfish-mine as the block subsidy decreases. Also, on the econ side, Micah doesn't seem to appreciate the role of money as a SoV and would rather see it 'invested', which goes against the Austrian view that 'uninvested' money becomes more valuable for investing where / when better opportunities arise.