This one has been rolling around in my brain for a while. I was on some online forum a bit ago and we were "discussing" energy, specifically the need and uses of energy to support our modern life. We got to a discussion of electric vehicles and the growth of solar and wind power. I realized with one comment that the person I was "talking" to really did not understand electric cars and power generation. He seemed to think changing all vehicles to all electric would solve all our problems. (FYI, I say "he" as the self-description was a 20-something male college student - I only "know" them from an exchange or two on the forum). I explained that one problem with that is that electric cars to do not produce any power, they just consumer power. A battery does not produce energy, it stores and releases it. The power has to come from somewhere. I really don't think he had ever thought of that and after a brief exchange, he left the forum. Batterie
The universe, by definition, is infinite. It is arrogant for us to think mankind can formulate all the questions much less grasp all the answers.