If self-driving cars cut the 32,000 annual U.S. traffic fatalities in half, perhaps carmakers won’t get 16,000 thank-you notes, but 16,000 lawsuits. - Max Tegmark

After DeepMind’s breakthrough, there’s no reason why a robot can’t ultimately use some variant of deep reinforcement learning to teach itself to walk without help from human programmers: all that’s needed is a system that gives it points whenever it makes progress. Robots in the real world similarly have the potential to learn to swim, fly, play ping-pong, fight and perform a nearly endless list of other motor tasks without help from human programmers. To speed things up and reduce the risk of getting stuck or damaging themselves during the learning process, they would probably do the first stages of their learning in virtual reality.

We discussed the spatial part of this paradox in Chapter 9, and concluded that your consciousness is actually observing not the outside world, but rather an elaborate reality model contained in your brain which is continually updated via input from your sensory organs to track what's actually taking place in the outside world.

Here... is the Schrödinger equation [<math qid=Q165498>i \hbar \frac{d}{d t}\vert\Psi(t)\rangle = \hat H\vert\Psi(t)\rangle</math>]... and what it's actually saying is that the state of the world, that's this Greek letter Ψ there with the bracket around it... It's saying that the rate of change of it... depends on the current state of the world, when you do this operation on it and for the math nerds, this is a linear operation... and what that just means is, as Everett has pointed out and many others have known for a very long time is that, in some circumstances, two different solutions to this can do their parallel thing. We can talk at... length about the discoveries... about decoherence and why it is that sometimes these different parallel branches are unaware or each other, but my point is... if you give a science nerd colloquium... at a physics department... ideally, you should also start in the same way you start discussing this with your grandma. Just at a very high level... here are the cool ideas, and then you can go as deep as the audience or the listener wants, from there.