Do weightlifters vanish when they try to lift weights in weightless environments?
I don’t know. But I’m sure that they could figure it out on the space station.
Okay, so there’s many other high-priority experiments that take priority over a weightlifter in space lifting weights. Like superconductors and crystals, and superconducting crystals.
And when it costs so much to boost cargo into orbit, weights won’t exactly going to top the manifest.
Still, it doesn’t take much to fashion some makeshift weights, wear a strongman suit, and test the theory.
Until then, the greatest mystery of the universe remains a mystery.