I had this idea and maybe it's silly, definitely not doable but still i wanted to post it and see what people might think of it.

I've always been fascinated by cryptography, how given enough computing power even something as mind mindbogglingly complex as AES 256 can be reversed to find the cypher.

Then I got to thinking, if we assume a human mind is nothing but a neural network and memories, would it be possible, given enough computing power and enough known inputs and outputs to reverse engineer the connections that make it up?

Can we decipher a human mind? And if so, wouldn't it be just a matter of being able to transfer it into a brand new brain and we'd have some sort of mathematical immortality, allowing us to compute any person's mind parameters and transfer them into a new body?

Anyone who's been on social media long enough for example, we'd take the entire history of their what's app, facebook, etc. And look for a mind producing the exact outputs they produce while living known the exact input (post) they were reacting to. Like you will when you read this.