In many ways, Albert Einstein's Relativity is bizarre. But Quantum Mechanics (QM) is so bizarre that even he couldn't accept it. He and Niels Bohr waged an intellectual war that lasted two decades until he died. In the end, though it still doesn't make sense, QM proved to be right and accurate again and again and again. There is a saying among the people who work in QM: "Shut up and calculate".

John Bell:

"Bohr was inconsistent, unclear, willfully obscure and right"

"Einstein was consistent, clear, down-to-earth and wrong"

We want to make sense of our life and the world we live in. But what exactly is 'making sense'? It is simply rooted in our expectation and finding some security – so we can feel comfortable. When we find that there may not be any meaning and life is fundamentally groundless, it freaks us out. We struggle with the uncertainty, unknown, ambiguity and paradox of life. So we invent many comfort seeking entities and ideas. However hard we may try to hide the reality or looking away from it to escape, it always follows us and knocks at our door — reminding us its presence.

Austrian physicist Ludwig Boltzmann showed why disorder (entropy) always increases (The second law of thermodynamics), though there might be temporary local orders. Whether naturally evolved orders such as galaxies, planetary systems, life, etc., or orders created by humans such as house, car, refrigerator, etc., they all are temporary and continually falling apart. The basic reason for this is that probability of an order is very low compare to disorder — so, as time goes by, it naturally leads to disorder.

Boltzmann’s idea was not accepted during life time. Depression prone Boltzmann, hanged himself. His idea achieved acceptance only shortly after his death. Two millennia earlier, Gautama Buddha taught his own version of entropy: Everything is temporary and bound to fall apart. His whole wisdom is rooted in the truth of impermanence.