eVideo
hoopla Instant
The Past Hypothesis
Year
2012
Language
ENGLISH
Duration
30m
Rating
TVPG
Publication Information
The Great Courses
Summary
Boltzmann explains why entropy will be larger in the future, but he doesn't show why it was smaller in the past. Learn that physics can't account for this difference except by assuming that the universe started in a state of very low entropy. This assumption is called the past hypothesis.