How bitcoin maintain its network when bitcoin no longer mineable?
Miners will continue to work and secure the network , instead of getting block rewards they will gain the transaction fees instead.
Who cares really ? None of us will be alive at that point.
This is usually my answer to this question too, because it has been asked many time on this forum before, but I want to throw a spanner into the works... Let's say the volume of the transactions do not
increase? Would people be willing to make a donation to a central pool for miners to continue mining if it comes down to that? I do not think they will ..... Will they pay larger fees than the current
industry standard to get their tx's mined? I guess not..... How will we fund this experiment, if tx volumes decrease and nobody wants to pay extra large fees to feed these hungry miners?
In that case the miners with the most hash power would switch off because it would be unprofitable. There would always be smaller miners willing to carry on mining with cheaper equipment, and at a lower hash rate. The difficulty would drop and the little miners would keep the network going.