Eye view. Please explain.
Meaning it's stationary so you see it as balanced.
Why does it drop down if I lift it?
Because you are COMPRESSING the air above and forcing that air to push around and under the table to equalize that pressure but as it does so, it flows around the edges of the table, uniformly, if it was lifted evenly and drags the table down and there's only your energy stopping that, so if you leave loose, the table then falls by it's own mass being more dense than the air under it which compresses the air under it making it a higher pressure than above, until that air gets pushed over the sides of the table to try and equalize the pressure difference, which will only happen once it hits the floor, because the floor becomes more dense than the table.
I'm holding it for 10 minutes so the air pressure equalises all round it and then let go. Why should it go down and not up?
How does the density of the floor change?
You can hold it for 3 weeks 4 days, 2 hours, 27 minutes and 44 seconds if you want to, or you can hold it for 10 seconds.
The density of the floor would change very little, assuming you were stood on a solid floor and not dirt.
If air pressure is the result of stacked gases and your body is equalized to the gases at the bottom, why would you think you would go up. It makes no sense.
If your body was equalized to the pressure at the bottom of the ocean, you will stay there unless you decided to jump up a little, but you would soon fall down.
The only way you can float or how you would perceive floating, would be to use your own energy and flap your arms in the air, aided by feathers..super super fast to do that.
The only things that would float, is something lighter than dense air pressure as we know it, which is expanded molecules that are SQUEEZED up. We are dense and are SQUEEZED down.