That is, Cowen, Andreessen, and Horowitz, in a 40-minute podcast. I chose to annotate it. Annotating is, like writing a book review, a way for me to absorb the material. Some excerpts from my essay:

1. As far as I can tell, blockchain can only help to prevent one type of cheating: digital forgery. If blockchain is going to have a killer app, then it has to enable a transaction to take place where the only impediment to undertaking such a transaction currently is the threat of digital forgery.

I would add that digital money faces the threat of digital forgery. But digital money also faces other impediments. ICYMI, my whole point is that other impediments to trust are, in the grand scheme of things, much more important.

2. New listening technology strikes me as incremental, not revolutionary. Portable radios are a very old technology. I listened to the Beatles sing “When I’m 64” on a transistor radio when I was 13. Now I’m 64.

3. Could AR and VR become a big part of everyone’s life? In my opinion, yes. Have the breakthroughs necessary for that to happen occurred or are they on the verge of occurring? In my opinion, no.

I would add that I do not know what the key breakthroughs will be. In fact, we will only have a better idea in hindsight. Who knew ahead of time that the breakthroughs needed to make mobile Internet access a winning technology had taken place by 2007 but not earlier?

4. I assume that in Israel and China, security issues provide an arena for cultural mixing between government and technology. Presumably, there is also some cultural mixing between Silicon Valley and part of the American military and homeland security apparatus.