chapter 3 - life lessons
Creation seems to come out of imperfection. It seems to come out of a striving and a frustration. And this is where I think language came from. I mean, it came from our desire to transcend our isolation and have some sort of connection with one another. And it had to be easy when it was just simple survival. Like, you know, "water." We came up with a sound for that. Or "Saber-toothed tiger right behind you." We came up with a sound for that. But when it gets really interesting, I think, is when we use that same system of symbols to communicate all the abstract and intangible things that we're experiencing. What is, like, frustration? Or what is anger or love? When I say "love," the sound comes out of my mouth and it hits the other person's ear, travels through this Byzantine conduit in their brain, you know, through their memories of love or lack of love, and they register what I'm saying and they say yes, they understand. But how do I know they understand? Because words are inert. They're just symbols. They're dead, you know? And so much of our experience is intangible. So much of what we perceive cannot be expressed. It's unspeakable. And yet, you know, when we communicate with one another, and we feel that we've connected, and we think that we're understood, I think we have a feeling of almost spiritual communion. And that feeling might be transient, but I think it's what we live for.
chapter 6 - free will and physics
In a way, in our contemporary world view, it's easy to think that science has come to take the place of God. But some philosophical problems remain as troubling as ever. Take the problem of free will. This problem has been around for a long time, since before Aristotle in 350 B.C. St. Augustine, St. Thomas Aquinas, these guys all worried about how we can be free if God already knows in advance everything you're gonna do. Nowadays we know that the world operates according to some fundamental physical laws, and these laws govern the behavior of every object in the world. Now, these laws, because they're so trustworthy, they enable incredible technological achievements. But look at yourself. We're just physical systems too, right? We're just complex arrangements of carbon molecules. We're mostly water, and our behavior isn't gonna be an exception to these basic physical laws. So it starts to look like whether its God setting things up in advance and knowing everything you're gonna do or whether it's these basic physical laws governing everything, there's not a lot of room left for freedom.
So now you might be tempted to just ignore the question, ignore the mystery of free will. Say "Oh, well, it's just an historical anecdote. It's sophomoric. It's a question with no answer. Just forget about it." But the question keeps staring you right in the face. You think about individuality for example, who you are. Who you are is mostly a matter of the free choices that you make. Or take responsibility. You can only be held responsible, you can only be found guilty, or you can only be admired or respected for things you did of your own free will. So the question keeps coming back, and we don't really have a solution to it. It starts to look like all our decisions are really just a charade.
Think about how it happens. There's some electrical activity in your brain. Your neurons fire. They send a signal down into your nervous system. It passes along down into your muscle fibers. They twitch. You might, say, reach out your arm. It looks like it's a free action on your part, but every one of those - every part of that process is actually governed by physical law, chemical laws, electrical laws, and so on.
So now it just looks like the big bang set up the initial conditions, and the whole rest of human history, and even before, is really just the playing out of subatomic particles according to these basic fundamental physical laws. We think we're special. We think we have some kind of special dignity, but that now comes under threat. I mean, that's really challenged by this picture.
So you might be saying, "Well, wait a minute. What about quantum mechanics? I know enough contemporary physical theory to know it's not really like that. It's really a probabilistic theory. There's room. It's loose. It's not deterministic." And that's going to enable us to understand free will. But if you look at the details, it's not really going to help because what happens is you have some very small quantum particles, and their behavior is apparently a bit random. They swerve. Their behavior is absurd in the sense that its unpredictable and we can't understand it based on anything that came before. It just does something out of the blue, according to a probabilistic framework. But is that going to help with freedom? I mean, should our freedom be just a matter of probabilities, just some random swerving in a chaotic system? That starts to seem like it's worse. I'd rather be a gear in a big deterministic physical machine than just some random swerving.
So we can't just ignore the problem. We have to find room in our contemporary world view for persons with all that that entails; not just bodies, but persons. And that means trying to solve the problem of freedom, finding room for choice and responsibility, and trying to understand individuality.
chapter 10 - dreams
You know, they say that dreams are real only as long as they last. Couldn't you say the same thing about life? See, there's a lot of us that are out there that are mapping the mind-body relationship, of dreams. We're called the oneironauts. We're the explorers of the dream-world. Really, it's just about the two opposing states of consciousness which don't really oppose, at all. See, in the waking world, the neural system inhibits the activation of the vividness of memories. And this makes evolutionary sense. See you'd be maladapted for the perceptual image of a predator to be mistaken for the memory of one, and vice-versa. If the memory of a predator conjured up a perceptual image, we would be running off to the bathroom every time we had a scary thought. So you have these serotonic neurons that inhibit hallucinations that they themselves are inhibited during REM sleep. See this allows dreams to appear real, while preventing competition from other perceptual processes. This is why dreams are mistaken for reality. To the functional system of neural activity that creates our world, there is no difference between dreaming a perception and an action, and actually the waking perception and action.
chapter 14 - ants
Hey. Could we do that again? I know we haven't met, but I don't want to be an ant, you know? I mean, it's like we go through life with our antennas bouncing off one another, continuously on ant auto-pilot with nothing really human required of us. Stop. Go. Walk here. Drive there. All action basically for survival. All communication simply to keep this ant colony buzzing along in an efficient polite manner. "Here's your change." "Paper or plastic?" "Credit or debit?" "You want ketchup with that?" I don't want a straw, I want real human moments. I want to see you. I want you to see me. I don't want to give that up. I don't want to be an ant, you know?
