Depends. If one considers BCH an alt-coin, I guess.
But in year 2140, all BTC are mined and this happens anyways. Long after we're gone, sure.
But test it now, as a window into the future, to see what happens. If it can't survive now, it won't survive then.
But I think for it to work, there needs to be a network.
Reliance on strictly transaction fees would require a large network. Which this wouldn’t have.
So I’m not sure the test would be that relevant. Good concept but impossible to compare.
Transaction fees in 2140, when bitcoin is global reserve currency, will be significant and good incentive to run a miner.
