Most of the criticisms by Eric Posner explain reasons why Bitcoin can't replace fiat currency. I don't think the goal is to replace fiat; rather Bitcoin would be a great supplement, as it accomplishes different purposes.
Hit the nail on the head. There is a plethora of important and difficult problems to solve, and the millenial generation has to trudge through the pile of shit that's been left accumulating for the past several decades. Our most pressing matters involve navigating a new world that is built on the internet.
"The Pittsburgh Left" is very common practice there, which is to give the right of way to the opposite car in the intersection that is turning left. Definitely a much more relaxed and polite driving environment than anywhere on the east/west coasts.
There seems to be a certain aspect of the night owl that is present in many programmers, I for one am far more productive in the late-afternoon and evening than I am in the morning. Setting a morning-to-evening schedule isn't going to work for a lot of us.
Why use symmetric cryptography over public-key? I thought RSA was theoretically secure as long as factoring sufficiently large prime numbers is impossible.
Nothing "killed" Turntable.fm, it's still going strong and has valuable features that Pandora and Spotify can't supply, such as social involvement and even music artists/producers themselves play live sets on the site.