You can represent any book, any image or any sound with a large number. You can set up a cipher where anyone can write you messages using publicly available in

You can represent any book, any image or any sound with a large number. You can set up a cipher where anyone can write you messages using publicly available information, but only you can read them. Human DNA is essentially a digital code, has a finite number of bits, and is smaller than data sets which we routinely manipulate today. Every known way of making meaningful computations can be represented in a formal system which you can write down on the palm of your hand. You can also write a recipe for producing the entirety of an infinitely detailed image, that keeps being visually interesting as you zoom in, on the palm of your hand.