Yes.. that is about 110 to 120 years into the future. Sure, we need to plan ahead, but I doubt that your assertion that no solution has been found is even accurate. It's not like a solution has to be found for every single hair brained theory when we do not even know if the facts are going to evolve into that direction... Makes no sense to have a solution ready for every single possible problem that could happen. In other words, there seems to be sufficient and adequate evidence that whatever is happening in bitcoinlandia at this time, is a sufficient and adequate balance of what is perfect (or good enough. .or whatever other qualifier that might fit here) for now and sufficiently and adequately balanced for a variety (if not an overwhelming majority of likely and unlikely scenarios) of future scenarios.
I think this is also important, the people that will need to solve this arent alive yet. And we cant know what their world will look like. Its all just speculation. I think Bitcoin will give them best possible basis to find a sound solution to this, for the reality they will be living in. We cant design a system for a world that doesnt exist yet, so we gotta make sure Bitcoin fits the needs of our reality first, to even survive this long. Its like someone in the 1900s trying to plan how we should live now. But thats what shitcoiners dont get. Systems are also about the people using them, its not about fancy founders with 10.000 prices and fancy features. A system needs to serve its users first, once it stops doing this it will just get abandoned or circumvented.