Videos

William introduces us to different aspects of meaning, as studied by linguistics and philosophers. He tells us about the difference between the literal meaning of a sentence someone says, and what they intend to convey by using that sentence at that particular time.

Caspar asks: can science tell us everything there is to know about the world? He tells us about a famous argument that it can't, sometimes called 'the knowledge argument' or 'the Mary argument', due to philosopher Frank Jackson. If the argument is right, then there are certain aspects of the world that we can't learn about through science. In particular, we can't use science to learn what it is like to see red, or taste coffee, or have other experiences.

Part 1 of a pair. Stephen considers the relationship between morality and God. Specifically, he asks: is morality the same thing as the commands of God? Is there no morality if there is no God? Ultimately, Stephen will argue that morality and God's commands are distinct, even if there is a God and she commands moral things. However, in this first video, Steve considers why you might like the view that morality just is God's commands.

Part 2 of a pair. After part 1, you might have thought that all different infinite collections of things are the same size. Not so! In this video, Agustin shows us another of Georg Cantor’s results: that for every size of infinity, there is a bigger one! An example: there are way more real numbers than there are natural numbers.

Part 1 of a trilogy. Greg lays out a classic argument that God does not exist, called ‘The Problem of Evil’. He distinguishes two versions of that argument, which are sometimes called ‘the deductive’ and ‘the evidential’ version. He goes into some details on the deductive version.