There is value in creating designs that are feasible if some technological breakthroughs is made. If we manage to make fusion work, then someone can then capita

There is value in creating designs that are feasible if some technological breakthroughs is made. If we manage to make fusion work, then someone can then capitalise on the existing designs. It's also a great motivator for people to work on those hard problems that could enable many fantastic possibilities. It's also just fun to let your imagination not be constrained by what is possible today, but what might be possible in the future.