Satoshi is a real person. He is probably in his early forties. The problem with being an innovative thinker and filthy rich is that you get bored unless you're keeping yourself busy.
So, he is likely to be working somewhere in the technology world.
What if you accidentally figure out the guy you've been working with (sitting next to, is a customer, is a consultant, is your client, etc) is actually Satoshi.
What would you do?
Honestly, by what? I could figure out that the guy is satoshi, at least he could show me the sign massage from the satoshis address, but if there's someone claimed that he was satoshi, i'll be like shocked and i would like to thanks first and tell him how lucky iam, i found and used bitcoin, and then leave him alone and keep the secret, because there is no advantage for me to revealed his identity.