The No Cloning Theorem

Having two or more copies of the same thing in the universe simply means that it is not possible to take something that exists that you don't yet know all the details about and make an exact copy while leaving the original intact. You can build a machine to make multiple copies of something as long as you know exactly what you're doing. So, is it possible to know every detail of something? Well, the Heisenberg uncertainty principle means that you can't simultaneously measure all the relevant details of a single object, but if you have several objects that you know are the same, you can measure each one in different ways to get a complete picture.

So the paradox is that in quantum mechanics you can't completely clone something that you only have one of, but if you already have many copies of something, you can make even more copies and yet, as far as we know, only one of us exists. . throughout the universe. So if there is no 100% perfect replication in quantum mechanics, there is no 100% perfect replication in humans either. While we could eventually create a child genetically identical to you, we probably won't be able to create an identical clone of you that has all of your memories. , thoughts and love. How close we can get, of course, depends on whether or not consciousness depends on specific processes in the brain.

But that's a question for another day. Hi Henry, thanks for following us. You may have noticed that this video is a little different than usual, it is much longer and deeper. I was inspired by my friend Grand Sanderson who makes videos about 3Blue1 brown. Make sure to watch his best and longest videos on mathematics, you will learn a lot from them. I would like to know your opinion about this video, whether you liked it or not. Translated by: @Autrjim Translation Team