What do flat Earthers think causes the "magical downward force"?

They don’t know - and not all of them agree that there is a “magical downward force”.

3. Gravity doesn’t exist - it’s a form of magnetism that works on non-metals.

The trouble with (1), (2) and (3) is that these cannot explain why the force of gravity varies with height above sea level…less at the tops of mountains - more in valleys.

Why can't the US government force this new deep seek to not operate in the USA for security reasons? People's personal information will be available to China like TikTok was.

If (1) was the case - the center of gravity of the Earth would have to be so deep down to avoid gravity pointing off at an angle when moving towards the “rim” of the flat earth that the difference in height of a mountain would be negligible and we would get very, very nearly the same gravity everywhere.

1. Gravity is real - but the Earth’s disk is very thick so the force is very nearly vertical.

I have heard them say:

Have you ever had a weird experience immediately following the death of a loved one that made you think there is an afterlife and that the deceased person was communicating with you?

If (3) was the case - you’d have the same problems as (1) - but this weir...

If (2) was the case - then the acceleration would have to be EXACTLY the same everywhere - and it’s not.

4. Gravity doesn’t exist - things are held down by air pressure.

Why aren't F1 cars popular on the street?

2. Gravity does not exist - the Earth is accelerating upwards at 9.8 m/s2 which seems like gravity.

…and there are probably other ideas out there.