[smiley1437]

> modulate our own weight, up to 0 -- or even negative.

Wolff's law suggests that if you set your own weight to zero or negative, your bones would become fragile

https://en.wikipedia.org/wiki/Wolff%27s_law

[andrewflnr]

Only if you do it long term. Astronauts survive months of microgravity. A couple hours or even days would be easy to compensate for.