 So let's clear some obvious ones out of the way. Okay, Descartes is not trying to answer questions about You know the nature of reality Know what it means to exist, right? We looked at Thales, Annexman, or Annexman as all those philosophers All the way through the Siphas and Democrates. They were concerned with questions about what it means to exist Descartes not doing that Yes, he questions his own existence. He brings it into doubt, but he's not asking about the nature of existence He's also not talking about truth, right? Lysippus, not Lysippus, Gorgias and Protagoras We're asking questions about the nature of truth You know what what truth is going to be, Protagoras says whatever you believe it to be, Gorgias says well, there is no truth Descartes not asking questions about the nature of truth You know or what makes something true or false. He's not doing metaphysics He's not doing yeah, even strictly speaking we talk about the nature of truth is still kind of metaphysics He's not doing metaphysics in any way rather. He's asking questions About knowledge, right? Remember his conclusion. Think about his conclusion All right, his conclusion is roughly something like you may know that what you can believe With certainty, right without doubt. Well that answers the question. What is knowledge? His arguments all revolve around knowledge He brings across he brings mentions, you know, extraordinary scenarios with evil geniuses and things like this, but that he's not seriously trying to say all we live in the matrix or we live in a Delusion, he's not trying to do that at all. He's merely saying look if we believe That we live in a physical world and that our senses tell the truth. How do we know that? Right? What's knowledge? So the question he's asking is what is knowledge? That's his question. His answer is that what you can know With absolute certainty that what you can know or believe Without any doubt whatsoever Not believe with without reasonable that without any doubt. I mean think of all the fantastic and weird scenarios that That could be happening right now. So you have to be able to rule those out In order to know that you're sitting in your room watching a computer Or that you're sitting somewhere looking at your phone You have to be able to roll out all these weird scenarios in order to know that Knowledge is what you believe certainty