What Is Probability?

Some people are suspicious of epistemic probability, but they shouldn't be, because i think it's actually the primary kind of probability we have. When you say that it's like a ten times coming heads in a row would be about one in a thousand. Your really, that's a measure of how much confidence you should have in that happening, which is about one in 1000. And you can give many, many other examples. There 's not a relative frequency of many, many universes. This is a unique universe. It's only happened once,. I'm the life on earth. You say, the thesis of common ancestry, that every all life sended descended from a single cell