Consciousness

What is consciousness? Where does it come from?

I don't know. But I do firmly believe that it is not magic. Whatever it is, it is purely physical.

And I do know a story about how it may have arisen. Don't take it as a scientific explanation. It's not. It's just a story, which might have a hint of validity about it, but then again, might not.

It begins with life. Living organisms capable of reproducing and reacting to stimuli. Organisms that react to stimuli appropriately would be more likely to survive and reproduce than organisms that didn't.

But what response is appropriate can be hard to determine. Is that a predator, or a mate? Should I go towards it, or away from it, or play dead? And so the brain evolved. An organic computer to make decisions.

For a brain to make good decisions, it needs to model the world around it, and predict consequences of different possible actions. If I jump over this hole, can I make it to the other side? If I chase that prey, will I be able to catch it? The more accurately the brain models the world, the better the decisions it can make.

Then a species of social primates evolved. For social creatures, it's helpful to model the others in your group with more detail than other animals, because you interact with them more often. The better your model of them, the more likely you can get them to share their food with you.

But since you're all the same species, they're modelling you too. So the most accurate model of them is to recursively model them modelling you. In other words your brain has to have a model of itself. And that's essentially what consciousness is. It's the brain thinking about itself, trying to predict its own actions before it makes them.

This story doesn't answer everything. Particularly not the hard problem of consciousness. But I think it does a decent job of addressing the easy ones. Assuming, of course, that's it's even remotely true, which it might not be.

Science and Wonder

It is a common notion that science takes the wonder out of life. A prime example is John Keats's poem, Lamia.

Do not all charms fly
At the mere touch of cold philosophy?
There was an awful rainbow once in heaven:
We know her woof, her texture; she is given
In the dull catalogue of common things.
Philosophy will clip an Angel's wings,
Conquer all mysteries by rule and line,
Empty the haunted air, and gnomèd mine—
Unweave a rainbow, as it erewhile made
The tender-person'd Lamia melt into a shade.

I think this notion is wrong. Science, when properly understood, doesn't destroy wonder, it enhances it.

First, I'd like to clearly separate two relevant meanings of the word wonder. The first is synonymous with awe, the feeling you get when you think, "That's really really cool!". The second is synonymous with curiosity, the feeling you get when you think, "I wonder how that works...". They frequently come together, but they don't have to. It's entirely possible to feel awe at something that you understand completely, or to feel curious about something isn't particularly awe-inspiring.

Science enhances the feeling awe, because it reveals nature, and nature is, well, awesome. The real world is far cooler and more interesting than any fictional world I've ever read about (which is not to say that fictional worlds can't also be cool and interesting). I've written about this before, and given several examples of real awe-inspiring things. Most of those things would never be known about without science. And you can't have a feeling of awe towards something you don't know exists.

Science enhances curiosity in much the same way. Every question answered by science uncovers still more to be asked. Questions you wouldn't even be able to ask before, since you wouldn't have known the concepts they apply to.

I think the reason Keats, and others who make this claim do so because of two mistakes. First, they don't realize that the feeling of awe can be separated from the feeling of curiosity. Second, they don't realize that answering questions you're curious about can uncover deeper questions. If those two things weren't the case, then science would destroy wonder. Fortunately they're not.

Cargo Cults Get a Bad Rap

Cargo cults are religions that formed in pacific island cultures when they came into contact with Europeans. They sought to replicate the Europeans' material wealth and technology by imitating it. They didn't know how those things were made, so they thought they were gifts from the gods. They built imitation airstrips and control towers thinking those were rituals to summon planes.

The term cargo cult has also been applied in other contexts, such as cargo cult science or cargo cult programming, to mean imitating techniques and procedures without what they're for or why they're used. I don't object to that usage, because it seems pretty accurate, but it does give a poor representation of cargo cults.

As far as I can see, cargo cults are the most rational religion in existence. They're still wrong and irrational of course. But compared to more mainstream religions like Christianity and Islam, they're downright sane. Cargo cults have real evident miracles.

Airplanes and radios and all sorts of magical things. You don't need to have faith in those things. Their explanation for those things was wrong, but that's not necessarily irrational. The irrational part of cargo cults is refusing to give up that explanation when it fails to work. Compare that to Christianity which is entirely based on irrationality and faith.

The Wonder of Nature

I saw a billboard recently that said "Explore nature, there are surprises everywhere". Pictured, it has kids in a forest, with Shrek. Personally, I think the presence of Shrek does a disservice to the message.

The reason is that Shrek isn't in nature. But things much more wonderful and amazing are. Nature has the Grand Canyon. Nature has Mount Everest. Nature has Angel Falls and Yellowstone and the Redwood forest.

There are trees literally thousands of years old. There are fungal colonies that cover miles of land. There are organisms that can survive boiling temperatures, or extreme radioactivity. There are even animals that can survive being in space.

There's no fiction that can compare to the magic and fantasy of real life.