a reply to: ThatDamnDuckAgain
This was already explored in the old 'Natacha'-comic, where a professor invents a BELT that produces such a field (though their version WOULD protect
you from high falls - and why not? Why an arbitrary, illogical limitation? What we call UFO ships, but they might call 'Beamships', have a force field
around them to protect from asteroids, but also to isolate from a planet's gravity field and effectively everything around them, with adjustable
vibration frequency that allows many things, like levitation and even being 'repulsed' by the planet the way water 'repulses' a cork, so going to
space would happen the same way - just letting the planet's magnetic field and atmosphere push you out).
I have nothing to add that the comic didn't explore, so I recommend reading it. The trouble is, I don't know if there's an english version of it, but
if you search for 'Natacha' and 'professor' and 'belt', I am sure.. well, let me try.
Phew, I didn't realize there were SO many 'Natashas' and 'Natachas' in the world. Anyway, you can find the comic with these searchwords, I even found
a download link (not sure if it works, didn't test it), but I am not sure if it's PD or not.
Natacha la ceinture du Cherchemidi
Natasha de riem van Proffessor Van Dyffuus
I am trying to avoid using the word 'Natasha' because of what it spells backwards.
I suggest reading the comic if you can, it's pretty fun an adventure, and it really explores some of the possibilities of such a belt. Understandably,
they don't make it public.
To answer the question, I don't think it would really make a difference, because it's the old icebreaker problem. The thicker the ice, the stronger
the icebreaker, then the ice becomes thicker, icebreaker even stronger, etc. It will never end.
I mean, either everyone has such a field, so no one can use it to oppress someone else (because the victim has it, too), or no one has it, so nothing
specific happens. If only a certain group has it, then that would make that group dominate the world pretty easily, so to level the playing field,
everyone should have everything everyone else has.
Of course the world doesn't work like that, which is why it's in quite a mess (among other reasons).