Professor David Wallace discusses the nature of probability and some of the philosophical puzzles that arise regarding how to understand and make sense of probability. He begins by distinguishing between subjective probabilities (which are about our beliefs) and objective probabilities (which are about the world itself). He then goes on to discuss various interpretations of probability and some of the difficulties that arise for each. This comes from a talk given in a series on the many-worlds interpretation of quantum mechanics back in 2015 at Oxford.
00:00 Concepts of Probability
01:04 Subjective Probability
02:14 More-Objective Probabilities
03:49 Very Objective Probabilities
05:52 Two Questions about Objective Probability
08:40 Frequentism
13:52 Probability from Symmetry
16:59 Probability as Primitive
18:10 The "Why" Question
20:10 The Principal Principle
24:43 A Dearth of Solutions to the Why Question
#philosophy #probability #epistemology #philosophyofscience #historyofphilosophy
