Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
I have reached Keynes death in The Price of Peace: Money, Democracy, and the Life of John Maynard Keynes, though there are several chapters left. Perhaps they deal with his legacy? I must admit I have found him a very engaging character.
Recently also having finished Frank Ramsey: A Sheer Excess of Powers by Cheryl Misak I have started to become interested in probability, a field in which Keynes and Ramsey both did important work.
An odd beast probability when you think about it. Can it be squared with cause and effect? Radioactive decay for example. How can it proceed at a given rate without being coordinated?
I can't see how you can square it with determinism or a clockwork universe.
What if nature is fundamentally probabilistic, which is surely what quantum mechanics implies? What would that mean?