no , in our case it IS THE DENSITY.

it doesnt matter how you twist it around to fit your world.

the ONLY REASON THAT BUOYANCY OCCURS is the differences in


in our case were not in a zero g environment
so im not sure why you are refering to zero g

but since you mentioned zero g

if you pour out a gallon of water inside the ISS
a sphere of water will form.

if you push a ping pong ball into the sphere of water in the near zero g environment the pingpong ball will be pushed back out , because of the differences in the density of the water and the density of the ping pong ball.

3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.