How many different kinds of ‘things’ are there? What are the fewest number of things that can characterize existence and do so exhaustively? In other words, what...
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6 videos
56:23
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How things start helps reveal what things are. How can we conceive the beginning of the universe? What are latest theories? Are they all speculation? What’s the recent...
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Episode
Episode 11
Season 17
26:48
The very early universe likely underwent a period of enormous expansion called “inflation.” This revolutionary theory stunned cosmology. It solved knotty problems...
5 videos
1:01:26
Galaxies and clusters of galaxies, untold billions of them, adorn the cosmos. How did such large-scale structure of the universe come about? The universe started as a hot...
4 videos
24:05
Some think metaphysics is ancient nonsense; others that it’s the bizarre occult. How does modern metaphysics contribute to our understanding of the world? It asks the...
55:30
Scientists split on whether the universe confirms or denies God. Though most leading scientists do not believe in God, some do. What can we learn from the dispute?
Episode 12
Beginnings are momentous, the beginning of the universe especially so. How did the beginning of our universe happen? Cosmic inflation is the theory that an exponential...
7 videos
1:08:45
How does metaphysics contribute to our understanding of the world? It asks the most profound questions: What kinds of things exist? How does causality work? Sound too...
Episode 06
Season 06
26:46
What are anti-realists and why do they deny objective reality? What we know of the world must come through our senses and be processed by our brains. Both can be unreliable;...
9 videos
1:10:55
What could be more startling than many universes – multiple universes, innumerable universes, perhaps an infinite number of universes? But does the multiverse really exist?
Episode 01
Season 18
The universe is astonishing in multiple ways, and one of its most probative features is the existence of its dark side: dark matter, interacting only via gravity, dark...
25:02
Everything in the universe has a beginning, but how can the universe as a whole have a beginning? Does the cosmos come with a start date? Does a universal commencement make...
57:17
