God not only plays dice with the universe, but sometimes throws them where they can’t be seen.
Physicist Stephen Hawking, New York Times obituary, March 14, 2018

All of science is based on it…But I don't really know why it works

If I were to flip a coin a million times I’d be damn sure I wasn’t going to get all heads. I’m not a betting man but I’d be so sure that I’d bet my life or my soul. I’d even go the whole way and bet a year’s salary. I’m absolutely certain the laws of large numbers—probability theory—will work and protect me. All of science is based on it. But, I can’t prove it and I don’t really know why it works. That may be the reason why Einstein said, ‘God doesn’t play dice.’ It probably is.
— Physicist Leonard Susskind, Stanford University, in his 2005 essay for the Edge.org collection “What do you believe is true even though you cannot prove it?”