David Deutsch on Knowledge

David Deutsch has a core perspective that I find extremely inspiring.

In his book The Beginning Of Infinity, he points out that there are only two real obstacles to any problem: physics and knowledge.

Your goal needs to be possible according to the laws of physics. If it isn’t, then no amount of knowledge will make it possible. You cannot get to Mars in your Toyota Yaris, no matter how much you know about space travel.

If it’s physically possible, then the fundamental obstacle is always knowledge.