mind-uploading

Mind uploading promises digital immortality. But if a perfect copy of you is running in a computer, is it actually you — or just something that thinks it is?

Forget philosophy for a moment. Just running a simulated human brain would require mapping 86 billion neurons, storing an amount of data measured in exabytes, and burning through more power than most small countries. Here's the actual engineering math.

Mind uploading — copying your conscious self into a computer — is a staple of science fiction. The science is fascinating, the obstacles enormous, and the philosophy genuinely confusing.