At that period of time, the use of Bitcoin would/could be mainly on trading, holding as a store of value, and there will be lots of implementation of different services that will take the use of Bitcoin on daily basis. 2140 is a very far time from now, and as such, the possibility of creating a way for the physical use of Bitcoin could be brought to reality. As far as it could be, so are the unimaginable possibilities under shadowed.

All answers that are provided are different opinions and views of people. The future has the right answers to all questions directing to it.