Scepti
If you consider yourself a FE scientist, or what ever you prefer to call it, you really need to take a long hard look at the questions people are posting here.
Lets just say you are on the right track. If you ignore the tough questions and just wave them away your hypothesis will remain just that.
It will most likely remain so no matter what.
The thing is, I always try to answer all questions but some questions are put in such a way as to try and get me to answer where it appears that I'm contradicting myself. It's a deliberate attempt to twist, so I ignore them.
I think I do a very good job of answering to many. The issue is in people just not grasping or not wanting to grasp what's being said.
Your denpressure hypothesis fails to answer many questions adequately and I assume you do not consider yourself all knowing and infallible. Good scientist not only look at what proves them right, but also what proves them wrong.
Questions denpressure fails to answer:
What keeps the atmosphere in place?
A naturally formed dome of hydrogen/helium (possibly) ice, formed due to the expansion of it's molecules into a near dormant state against a true vacuum (possibly).
Nature likes balance and pressure will equalize unless some thing prevents it from happening. Why does the atmosphere not move towards the vacuum of space?
Because space does not exist. The more reality is what's known as (to our perception) a true vacuum or the absence of all matter, (Earth) leaving, basically blackness to our vision.
Why does the atmosphere become denser at lower altitudes?
Compression.
Stack billions of footballs and soon enough the bottom ones will be crushed to the size of peas and yet the top ones will stay as a football.
Atmospheric stacking.
Simple experiments can be conducted to show that a liquid of the same density will not do this unless something is acting on it.
And what is acting on liquid?....Atmospheric pressure.
Why do things fall at the same rate regardless of the surface area or density? Want to see this for yourself make a vacuum chamber and drop different things in it.
A vacuum chamber, or shall we say, a chamber with lower pressure simply allows objects to come up against less resistance to their mass. They don't fall at the same rate, it just appears that they do, due to the chambers not being of any great height.
Why does it require less energy to move horizontally then it does to move upward?
If what is holding me on the ground is air pressure and it is acting equally in all directions.
I will leave it a that.
Because walking horizontally requires little bending of the limbs to push away atmospheric pressure.
Walking up a gradient or a ladder/stairs requires you to push your limbs much more into atmospheric pressure.
You may think it seems little but it is far from it when you think carefully about it.