I don't buy it. Musk + Hawking are wrong. Why? People. It's not
  going to happen because there's watchdogs *like them* watching.
  In short, by participating in the system, they're changing it.
  That's why I don't worry about it, - doomsday isn't coming. To
  me, doomsday is just a reverberation of western civ's post
  reformation obsession with apocolypse and utopia alike. I have
  yet to see a utopia. I have yet to see an apocalypse. Internet
  is the closest thing to a utopia honestly, though, so we have
  this at least. In short, other people can get worked up over it.
  I don't have to. There will always be people who get worked up
  over change. They prevent it from occurring or slow it down.
  Frees me up from worrying about it.