The point about whether the human brain may never understand some aspects of the universe is really interesting.  A monkey will never be able to understand quantum mechanics - that is true.  However, maybe there is a computational threshold, which once passed, allows arbitrary processes to be 'understood'.  I am thinking of how all possible computation can be done by any machine that is equivalent to a Turing Machine.  Some are faster and more efficient, but all can arrive at the same answer.  Humans 'chunk' ideas, and build hierarchies of models.  They do not need to understand what each molecule in a gas does to understand how pressure and temperature emerge.  We don't need to understand all cell biology in order to model an ecosystem.  I am not saying that we can, necessarily understand all of how the universe works, but there is a possibility that we can understand at some level of abstraction - I think the jury is out until we understand more about intelligence itself.,(reply>), Depends on your definition of a human being!<br>We already cannot live without machines and technology! Every time you get into your car, you're essentially a robot with wheels! Our lives are going to meld with tech more and more, at what point are we no longer human? The definition will EVOLVE!<br><br>Cheers 😽