Sneak peek of tomorrow's video, see any errors?

Hi, Grant! I am studying Euler's formula.. It is easy to memorize but I didn't know that could get so difficult.

Yes! New video for that coming very soon. I briefly paused work on it to put this video together because I hadn't published anything for a while.

3blue1brown

I love those moments of sudden realization <3 Awesome video!

Amazing video! But are you gonna continue your essence of probability?

Kuba Okrzesa

Elegantly presented as usual. Bravo.

Very minor nitpick that's not even much of a problem: at 2:37, P3 very briefly goes out of the arc, and is a bit distracting. You're also talking about when P3 is in the arc so it would make sense to not have it leave the arc at that point.

Awesome, as always. I'm looking forward to Like-ing and Favorite-ing it tomorrow!

I have nothing to add but thank you for another fantastic video...

Thanks Ryan, that's a good call.

3blue1brown

Actually if I’m nitpicking, I’m gonna say the explanation that the origin is contained in the tetrahedron if and only if all three coin flips go to the opposite side of P4, was, arguably, difficult to understand. However, with the 2D-example to think about, the audience should be able to fill in those mental details.

Jacob Mirra

It’s a gem. Didn’t see a thing I’d change.

Jacob Mirra

Also, I love that you not only explain the solution in an effective way, but that you also articulate why this method of solution discovery is effective. In doing so this video helps viewers become better math students and better math teachers.

Great video! Nice work, Grant. Small suggestion — at around 7:15 when you're visualizing the possible choices of P1 and P2 given 2 random lines, the blue highlight of the arc opposite your selection is hard to distinguish from the remaining white portion of the arc. Either dimming the white portion or using a higher contrast color for the blue might help! Visualizing the green "spherical triangles" was really helpful in following your narration in the three dimensional case—at first I didn't notice the highlighting in the two dimensional case.

Thanks!

3blue1brown

there's a graphical error at 7:11 with P1 stuttering on its way to the other side of the circle

Kit Spindler