This essay answers the question amazingly well: http://paulgraham.com/gba.html http://paulgraham.com/gba.html What is sad here is not that those subjects are d

This essay answers the question amazingly well: http://paulgraham.com/gba.html http://paulgraham.com/gba.html What is sad here is not that those subjects are discussed but the sometimes fearful and shrill tone in which they are discussed. Sadder still is that there are a lot of comments on HN that seem just as afraid of hacks like Soylent or Bitcoin or AirBnb.