Well, John, that that's all relative.

Death is a primitive concept.

His notion of welfare is pretty abstract.

(Laughter)

But yes there are some solutions.

It's information.

He wins his arguments by logical reasoning.

This is something that I set down, from the very beginning, as a core principle of the community that's completely not debatable.

We've certainly used logic all over the place in this class.

And race is an illegitimate concept which our selves have created based on fear and ignorance.

It's fundamental to Darwin and Mendel and so on.

We'll actually delve into the details of bankruptcy.

Think of all the roles that people play in arguments.

It's an idea. Greatness.

Sexually unattractive people leave us cold.

Is intellectual property a fair system?

In the last few lectures we have covered in detail multiple regression analysis.

Why do we swallow a pill to help cure a pain in our fingernail?

And this seemed astounding. The Internet is a transcendent idea.

Well, we had the practical concept.

If the operator is JavaScript Minus, I evaluate it, using Python Minus.

His argument is rational.

One, the numbers you'll never get to see.

I mean one thing and one thing only, and that is survival of the fittest.

A long discussion boiled down to a realistic conclusion.

The long discussion reached a realistic conclusion.

His argument is more radical than yours.

So to demonstrate this, let's think about the construct, verbal ability, in children.

So we have a linked list of nodes representing the path.

Then Mecurio replaced that and now I use Git and that's great.

I don't know about you, but I find it exhilarating to see how vague psychological notions evaporate and give rise to a physical, mechanistic understanding of the mind, even if it's the mind of the fly.

I won't be drawn into a philosophical discussion.

All those positive correlations.

First of all, I'd like to give you an argument for why that list is complete.

The first thing we want to do, is what's called procedural abstraction.

So we have a lot of very romantic ideas in our culture about individualism.

So we have these models argument as war, argument as proof and argument as performance.

The notion of violent jihad in which more Muslims are killed than any other kind of people is already thoroughly discredited.

That's the kind of argument we want.

Oh, it is! We're so happy, this is going to work out perfectly.

Now you might say, hey Sal, why are you even introducing this idea of a linear combination?

Discussion is based upon mutual respect.

Because it's an ideal. It's an imaginary thing. We can't have it.

(Laughter)

In biology, the notions of symbiosis, group selection, evolutionary psychology are contested, to be sure.