So what parts of the face are these 128 numbers measuring exactly? It turns out that we have no idea. It doesn’t really matter to us. All that we care is that the network generates nearly the same numbers when looking at two different pictures of the same person.
As a way to cure this ill of self-confirming theories and belief systems, he came up with what is now called falsificationism: the idea that a theory or belief system can only be scientific if it clearly lays out what specific evidence would prove it wrong.