Any sufficiently advanced technology is indistinguishable from magic.

Open the pod bay doors, how?

Welcome back to this very special two-part episode on the physics of the human eyeball.

Done in collaboration or rather inspiration courtesy of my friend Andrew

Huberman who speaks often about the eye and the effects of sunlight on the

human eye. It's supposed to go on his podcast at some point. We'll see when that is.

And when I do, I want to talk to him about the similarities between the human eye

and a telescope. And how understanding the limitations of each allows us to use both in a better more optimal fashion.

As Andrew likes to say, we like to provide these at zero cost to consumer.

In today's video, we'll talk about the deficiencies.

Previously, part one, we'll have a link to it up above.

We discussed the magnificence of the human eye and how it does what it does and the similarities

between the human eye and a telescope. We're all born with two refracting telescopes as I said.

We talked in part one about how you can improve your telescopic vision and even what supplements

you might be able to take to improve your night vision. astronomical techniques including averted vision, using your

peripheral vision. Understanding the limitations of the human eye allows you to use it in a much better

fashion. And that's what today is about. A reminder you can get my free telescope buyer's guide down below when you join my Monday

magic mailing list at Brian King.com slash telescope.

So let's dive back in into the eyeball, this time with an eye towards its deficiencies, its lacunae, my favorite word.

Several different factors can degrade your ability to do astronomy using the human eye.

The most common is something like near-sightedness or far-sightedness or astigmatism.

These different optical effects can give you different challenges when observing things through a telescope or even with the

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