Everyone knows GPS is a fabrication of the conspiracy.
No it's not, flatearthers do not try to disprove GPS, but are merely saying that it does not function with satellites.
You can buy from the store for your car. Mobile devices have GPS.
The wobbles shouldn't affect the depth of the ocean.
The amount of water from atmosphere to the bottom of ocean is what we consider the depth of the ocean. Wobbles are part of the water.
Atmospheric perspective and the gradual curvature of the wobbles makes this impossible.
Such gradual curvature wouldn't explain your theory that there is such a big distance difference between flying and sailing.
(Which is incorrect.)