I'd like to react to three of my picks. First of all PG conveys with its fragmentation model that long careers in the same company are a thing of the past. I explain an opposite view and support that new companies will have people work longer for them (10 to 20 years) by hiring them much earlier, for much cheaper. This challenges the dynamics presented by PG.
http://read.reddy.today/read/7/hire-high-school-graduates-in...
The second thing is that I found intriguing that PG write "Your prestige was the prestige of the institution you belonged to" talking about college graduates, as if it was a thing of the past and thus presenting himself as a hacker of this system while YC overly represents Stanford alumnis. But this is a paradox that I found with YC in general. They position themselves as a hacker of the system while they really are a cornerstone of this system in many regards.
Therefore - third thing - it wasn't a surprise for me to find in the last paragraph that PG envisages centralization as a better alternative and with a certain nostalgy thinks that the effects of this "defragmentation" need to be contained. Overall, PG thinks like a wealthy man who made his fortune in the late 90s and who has the graduate syndrom - about which I will write momentarily. His insight is certainly valuable but his proposition isn't disruptive.