Our Mathematical Universe: My Quest for the Ultimate Nature of Reality

by Max Tegmark

it’s easier to make money when you have lots of it,

Albert Einstein allegedly said: “In theory, theory and practice are the same. In practice, they are not.”

we’ve gone from arguing about whether our Universe is 10 or 20 billion years old to arguing about whether it’s 13.7 billion or 13.8 billion years old.