Hello everyone, i'm new here please give me some guidance... 
Some question :-
1. Do bitcoin will be exhausted?
2. Who's really satoshi nakomoto?
3. Mining will be profitable for future?
1. Definitely. Bitcoin has a limited supply of itself which is one of the reasons why it is more desirable to use than conventional fiat.Some question :-
1. Do bitcoin will be exhausted?
2. Who's really satoshi nakomoto?
3. Mining will be profitable for future?
2. Nobody knows, there are a lot of hoaxes around about who's the founder.
3. Not really, especially with the upcoming halving.