Send Me To Sleep | Descartes (Voice Only)
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What is Descartes' method of radical doubt and why does he start by questioning everything?
Hello, it's your host Andrew here. If you're enjoying Send Me to Sleep so far and you'd like to help support the show, the best way to do that is Send Me to Sleep Premium. Over there you'll get ad free episodes as well as access to all of our bonus episodes. You can find a link to a seven day free trial in the description notes. Thanks so much for listening, and here's just a few ads before the show begins. It's quite a rare thing, really. that we as individuals will spend the time Two Analyze what we believe. you know, is rather Commonplace rather Intuitive to us. To simply take the things that we believe for granted. Um, someone once said to me. Ah a simple phrase that really is I found quite profound. And that is that there is no thought in your head
that you believe to be untrue. But despite this There will be Many things that you believe that are untrue. And it is only later that Matthew. Discover, perhaps, that something you once believed to be true is It is false. And of course you Habitually immediately correct this in your mind, you understand. The new truth. And then you move on. And you don't really think that Too much. About the fact that You harboured false beliefs for Such a long time. or however long it may have been, possibly. Your entire life. Unless of course the revelatory truth is Rather significant and foundational, perhaps. But Even in these cases, the You can become Rather resigned, rather sort of um you can easily forget, that is to say. Uh after a short period of time.
But you were ever wrong. And that is, I suppose. Because for a certain reason or another It is easier for us psychologically, I suppose. Two Believe that All of our thoughts are correct. That we Have an accurate understanding. Of the world around us. I suppose. But Of course, it is important to scrutinize the Our beliefs. From One time. To another. Now and again. It is a good thing. to try and Discern where the The knowledge we hold is correct. And to try and discern whether we can, in fact, at all. Uh Trust. The knowledge. That we hope. Or what
we
perceive to be knowledge. And this is the foundational start of What it is. that Descartes was attempting to do. And He Decided. One day that He would
How does Descartes use the ‘evil demon’ thought experiment to challenge our senses?
Like to reassess. Everything that he knew
to
be true. He decided that Yeah. learnt much throughout his life from various sources Friends, family, Teachers. But that the foundations upon which the The knowledge he had gained were built. Wa Possibly flimsy. He hadn't really scrutinized enough. How certain He could be. Of the truths that that he held. And This wasn't to say That He believed that all his thoughts were Incorrect. But simply that he wanted to Attempt. To understand how much of what he thought to be knowledge was in fact knowledge. things that he could rely upon. to be true. And so he underwent the process of what I believe he referred to as destroying the house, as it were, or dismantling the house. Which was essentially, like I say, a metaphor. For stripping back
D Mental structure, a house, as it were, That he had created. With all of this supposed knowledge. that he had accumulated. In order that he might Rebuild. Its foundations, so that moving forward. He could Ensure that anything that knew that he learnt any new knowledge that he attempted to acquire. He could Mm ensure to himself. that it was built upon a solid foundation. And I think this is a very noble Go. I think it's a very worthy goal. How often is it that we indeed see? Question. What it is that we are told. How often do we question what we feel? We already know. And so Descartes went about. attempting to start this process. Of dismantling. And his conclusions were Very interesting. And he comes to these conclusions with
Bye. Going down the road, he said. with these increasing levels of doubt. So He would begin. By arguing. That we can be In some doubt as to whether the We might be in some kind of dream. At any one time. And this starts from a doubt of our own senses. So For example, things Far away. Can appear. Perhaps smaller or larger. than we expect them to be.
Why does Descartes conclude that the only indubitable truth is ‘I think, therefore I am’?
Um objects may distort in mirrors or when placed in water. So we can
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Chapters
8 chapters
1
What is Descartes' method of radical doubt and why does he start by questioning everything?
0:00–3:56
2
How does Descartes use the ‘evil demon’ thought experiment to challenge our senses?
3:56–7:51
3
Why does Descartes conclude that the only indubitable truth is ‘I think, therefore I am’?
7:51–12:10
4
What role does the wax argument play in illustrating the limits of sensory knowledge?
12:10–16:15
5
How does Descartes distinguish between mind (thinking substance) and body (extended substance)?
16:15–20:10
6
What are the main criticisms of Cartesian dualism presented in the episode?
20:10–24:09
7
How does the discussion connect Descartes' ideas to modern concepts like simulation theory and brain‑in‑a‑vat?
24:09–27:30
8
What is the final philosophical takeaway about certainty, doubt, and the existence of the self?
27:30–31:12