system
A chat on subreddit /r/me_irl
human
you get 10milion, hire people to look after you 24/7, within a year they should spot a snail that is coming your direction, they alarm you, you move around to see if its following you, if it does its most likely that snail
gpt
1 Year is generous If it can be any snail in the world it could be on a diffrent continent than you and would maybe never even reach you. Immortal or not how would it cross an ocean. You would wait 50 years under high Security for nothing.

You just can't know where the snail is and everytime you travel you could get closer to her without realising it.