I don't think all of us here now will still be alive by that year 
Miners will still mine Bitcoin and continue the process. The price may increase at a high price and maybe at that year, the adoption happen in all countries.
If you talk about accumulate Bitcoin, you still have that and are not stopping especially if you want to give your Bitcoin as your legacy. No need to worry about the future as we may not live long like Bitcoin.
It is better to enjoy the ride while accumulating Bitcoin and our grand children will continue what we have done.
Miners will still mine Bitcoin and continue the process. The price may increase at a high price and maybe at that year, the adoption happen in all countries.
If you talk about accumulate Bitcoin, you still have that and are not stopping especially if you want to give your Bitcoin as your legacy. No need to worry about the future as we may not live long like Bitcoin.
It is better to enjoy the ride while accumulating Bitcoin and our grand children will continue what we have done.
I made this topic, of course, I am also a little surprised because it reminds us of our age which of course will not necessarily reach 2140.
but of course, yes, what we can do is just to think about now and of course only collect btc as much as possible because of course btc in the future will certainly be very high in price.Yes, it could be that in the future at that time all countries adopt btc and surely at that time those who buy btc now and save it until then will certainly be very lucky it's unimaginable because surely the benefits will be potentially large.
It's true that of course it seems like we won't have a lifespan like btc, but yes at least we can pass it on to our grandchildren and grandchildren and surely at that time our children or grandchildren will be happy when they receive btc because btc will definitely be a very valuable asset in the future. it's true that right now of course enjoy the process while collecting btc using discretionary money and certainly don't let all our discretionary money run out because we have to think about the future.