Free will seems obvious, simple, common; but it’s subtle, profound, maddening. Free will probes the deep nature of human existence. But big questions have big problems....
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11 videos
1:38:40
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Consciousness is what we can know best and explain least. It is the inner subjective experience of what it feels like to see red or smell garlic or hear Beethoven....
59:00
We look around and see innumerable things and to each we give a separate name. But most things are composites, made up of smaller, more fundamental things. So digging down to...
6 videos
49:25
Defining ‘truth’ is an ancient question that in the age of science should find resolution and agreement. But this is not so. Even today, truth remains elusive....
5 videos
39:18
Why does alien intelligence hold such fascination? Can we even conceive of what they might be like? To appreciate intelligent, sentient life in the universe, right now we...
35:43
Most scientists assume that the universe must be populated with innumerable alien intelligences and civilizations—after all, there are billions of galaxies each with...
4 videos
45:09
What does it mean to ask about the ‘end’ of the universe? Can the universe even have an end? What would end? In the far, far future, what happens to stars,...
36:27
Consider humanity’s astounding progress in science during the past three hundred years. Now take a deep breath and project forward three billion years. Assuming humans...
9 videos
1:21:15
If all is random and our universe is the only universe, the chance existence of human awareness would seem incredible. Because the laws of physics would have to be so...
8 videos
1:21:42
In a ‘billiard-ball world’ of Newtonian science, causation was obvious—things had to touch each other in space and a cause always had to precede an effect. But...
39:35
The claim that human beings have or are an ‘immortal soul’ goes back to the ancient Greeks, if not further. In a pre-scientific world, it would seem absurd for...
44:36
Is the ‘real you’ a special substance that is nonphysical and immortal? Most regular people would agree, but most scientists would not. What are you? A body alone...
1:24:23
