I propose two possible solutions: A. Build some huge-ass rockets on the moon to accelerate it to offset any slowdown from changes in tidal energy. B. Divert a

I propose two possible solutions: A. Build some huge-ass rockets on the moon to accelerate it to offset any slowdown from changes in tidal energy. B. Divert a few billion tonnes of asteroids to crash into the moon's aft, adding both to the moon's velocity and mass. I believe that if we begin working on any of these solutions within a hundred thousand years or so from now we should be able to offset most of the projected long-term lengthening of the day.