Why Do Mirrors Flip Left and Right but NOT Top and Bottom - Richard Feynman 

Good idea! I will try that for sleep time. R.I.P. R. Feynman

I do the same when watching PBS Spacetime channel!

You're so smart!

Feynman was possessed of an excellent sense of humor.

Adolfo Rufatt So does that mean that the way we see ourselves in the mirror is the same way people see us? So the mirror is true? Or the camera? Cause when I take a selife of myself, my face looks backwards and it flips but the MIRROW isn't backwards and I like the way I look in the mirror. So does that mean that my face isn't backwards or flipped when looking at myself in the mirror? :)

Those were different times. Now the puzzling questions are more related to technology, like asking how do transistor make 1s and 0s and how do those in turn create images on the screen with nothing more than current from a battery.

Transistors are well understood by the public at large? Even disregarding the fact that my comment wasn't limited to transistors alone, your argument puzzles ME. I mean to say that it's a thing we use daily, PCs in the mobile format and yet WE the public have little to no understanding of how or why they work, just like why mirrors present a flipped image of reality. I don't know anything about scientific fraternities, if I did I'd ask them such questions and with little doubt in my mind I'd find members that have no clue despite knowing vast amounts of information in relevant fields such as mathematics, material sciences, physics, etc. and that was the point of it no? To show that no matter how many things one thinks they know, there is always more. This guy was a theoretical physicist right? The heck would he know about low level APIs and programming languages that enables data processing and the display of the results? The amount of interdisciplinary knowledge would be beyond him, it's beyond most.

Just stop.

If you really think it's a valid question. Did you know that everything we see is actually inverted. Our eyes see everything upside down and our brains actually correct the image. He's asking why if the image is reversed one way why not the other way even when the orientation of the mirror changes. It's something we wouldn't normally think about because we're so use to it just being a matter of fact.

***** It is, if our brains didn't correct the image on our cornea we would have to walk on our hands to see everything right side up.