Like, say you had a grain silo or some theoretical structure that would allow you to fill the structure as high as you wanted, full of balloons, all inflated with regular air, not helium.
Is there a point where the balloons’ collective miniscule weight would be enough to pop the balloons on the bottom? Or would they just bounce/float on top of each other forever and ever?
Theoretically speaking, eventually, yes. If you have millions, you might even need billions of balloons, stacked on top of each other, the force of gravity on all those millions of balloons should equate to a weight that is high enough to pop the balloons at the bottom.