The five lessons

Lesson 1

What color is your eye?

This is the forty-first lesson of our Big Course. Along the way, you'll learn what's odd about how big a human eye is, what the parts of the eye are really called, and the surprising truth behind what an eye actually is.

This is a free preview.

Lesson 2

How does your eye actually see?

This is the forty-second lesson of our Big Course. Along the way to the answer, you'll learn some weird things that you might see on the retina, what a "rod" and "cone" really are, and why you might (or might not) want to eat more carrots. 

(You'll also learn what often makes a modern scientific explanation different from, say, one of Aristotle's philosophical answers. Pretty heady stuff.)

Lesson 3

Are human eyes terrible?

This is the forty-third lesson of our Big Course. Along the way to the answer, you'll learn how well your eye is designed compared to an octopus and a digital camera, the surprisingly bitter fight over whether your eye is designed well or poorly, and the wonky way it might have evolved.

(We'll also walk into a raging fire of a debate about the boundaries of science and religion, and very possibly get burned...but if you stay to the end, I think you'll become wiser about how to think about this than 95% of the public.)

And if you stay to the very end, you'll learn what you're really looking at when you look into someone's eyes.

Lesson 4

What color is a pink cat in a green room?

This is the forty-forth lesson of our Big Course. Along the way to the answer, you'll learn where and how you see color, the colors you don't see, and the colors you do see (that aren't there). This is truly one of our favorite lessons. Stay to the end to find out what the deep lie of the lesson was. 

(We'll also touch on one aspect of the hard process of consciousness, because, who could pass that up?)

Lesson 5

What'd happen if you were CURED of optical illusions?

This is the forty-fifth lesson of our Big Course. Along the way to the answer, you'll learn just where "seeing" really happens, what happens when you imagine something, and how an optical illusion actually works. 

(This is our second foray into neuroscience. Look forward to these seeds sprouting!)

Secret Sixth

Why do people disagree about the Dress?

This is one of those off-the-books "Secret Sixth" lessons; specifically, the one for "Eyes". Along the way to the answer, you'll...well, I don't know what to tell you. Honestly, in some ways there's nothing NEW here at all - it's all an application of everything you've learned before, yet HOLY SMOKES is it hard. Y'know why? Because VISION IS FLIPPIN' COMPLICATED. Good luck. (I'mma go lie down.)