05a. Cartesian Skepticism - Neo, Meet Rene. Part 1/2.
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Squarespace: Share your passion with the world. A film for your philosophical consideration: The Matrix.
You gotta remember the, uh, the humans floating in vats of KY jelly? Tubes and wires keeping them alive, stimulating their brains, to make them believe that they were experiencing the real world – the world we all think we know? Well, almost-20-year-old spoiler alert here: some of them come to find out that the real world was a desolate wasteland, and the lives everyone thought they were living were just fabrications fed into their brains.
A select few were ‘rescued' from the illusion, but some of them were so unhappy in the real world that they chose to return to illusion.
But Neo -- and the others who chose to stay and fight --- were the philosophical heroes of the movie, choosing truth at the cost of comfort and happiness. After watching The Matrix, you might've found yourself wondering: Could this be true?
Could we possibly be stuck in a dream world of someone else's making, with no way to tell that our “reality” isn't real at all? If so, you're not the first person to have wondered about these things. In fact, the original Neo?
The guy who really went into battle against the matrix of illusion, in order to defend the Truth? He was a 17th century mathematician. Named Rene. [Theme Music]
Last time, we talked about Plato, and his belief that the ordinary reality of the material world is only a shadowy approximation of Ultimate Reality.
Socrates, meanwhile, who was widely believed to be the wisest man in Athens, fretted about how little he knew. Philosophers spend a lot of time obsessing about knowledge, wishing they knew more, and worrying that they're wrong about what they think they know. They even, if you remember from the first episode, have a fancy name for the study of knowledge – epistemology.
The philosopher who gets the gold star for taking this how-do-I-know-what-I-know paranoia to astonishing levels is the early modern philosopher, scientist, and mathematician, Rene Descartes. When you watch The Matrix, you should congratulate the Wachowskis for giving us such a great sci-fi adventure story.But you should also remember that the archetype of the story actually has its roots all the way back in the writings of Descartes, in the early 1600s.
For a story like The Matrix to get off the ground, the audience has to be willing to entertain some level of skepticism.
And a skeptic is someone who questions whether it's possible to know anything with certainty. And Descartes was the mac daddy of all skeptics. He was so skeptical, named a form of skepticism after him – Cartesian Skepticism! Why was Descartes so skeptical?
Well, he realized that many of the beliefs he used to hold were actually false. We all go through this; it's part of what we call growing up. Learning the horrible truth about Santa and the tooth fairy. That you can't actually buy everything you want and need for just $100. That your parents don't really have all the answers. But realizing that he used to believe things that were false really got Descartes to thinking. Because: When he believed those things, he didn't realize they were false. So what if some of the things he still believed were also false, and he just hadn't realized it yet?
How could he know that his beliefs were true? Well, after a bit of a freak out, Descartes realized that the only way to make sure he wasn't holding any false beliefs was to disbelieve everything. At least temporarily. He offered this as an analogy: Imagine you have a basket of apples, and you're concerned that some of the apples might be rotten.
Since the rot could spread and ruin the fresh apples, the only way to make sure there's no rot in the basket is to dump out all the fruit, inspect each apple in turn, and return only the fresh apples to the basket. Knowing that, just like rotten fruit, a rotten idea can spread and infect all the ideas around it, Descartes up-ended the apple basket of his beliefs and decided to start from scratch. If he examined each possible belief carefully, and only accepted those about which there could be no doubt, then he'd know he was believing only true things.
So, Descartes began the arduous task of examining his beliefs one by one. He started with empirical beliefs – things we come to know directly through the use of our senses. And many of us think that our senses are the most reliable source of information. If I can see it, and hear it, touch it, taste it, smell it, I must know it, right? Not so much.
Descartes pointed out that our senses fail us all the time. You rush to catch up to a friend and realize, as she turns around, that your eyes played some tricks on you, and you've just tapped the shoulder of a perfect stranger. Food tastes wrong when you're sick. Drink too much and you feel like the room is spinning. Water that's room temperature feels hot when you come inside after playing in the snow. The list goes on – you can probably think of countless times when your senses gave you faulty information.
And once you realize that, how can you ever trust your senses again? And for Descartes, disbeliever of everything, iit got worse. Have you ever had a dream so vivid you thought you were awake? You've probably had a dream that you were dreaming, or dreamed that you woke up from a dream, but in fact were still in the dream.
Not everyone has had these experiences, but many of us have, and given that we don't always know that we're dreaming while it's happening... HOW DO WE KNOW WE'RE NOT DREAMING RIGHT NOW? Maybe you just think you're watching Crash Course, but in fact, you're cozied up in bed, dreaming about me.
Which, hey, like, who could blame you? But really, when you think about it, can you be SURE it's not the case? Now, you might be thinking, ok, sure, I probably deceive myself from time to time, without knowing I'm doing it. But dreams end. And when I wake up, I realize that what I thought I was experiencing was all in my head. And the same is true for when my senses let me down.
Those are just temporary instances, isolated to a particular situation. As soon as the situation changes, I can realize that my experience was false. This quality – the ability to check in with yourself and figure out that you're experiencing a deception – describes what Descartes called local doubts.
Those are doubts about a particular sense experience, or some other occurrence at a particular point in time.
Step out of that point, and you can check to determine if you've been deceived.