First, let’s quickly debunk NASA’s so-called “physics”. People mostly criticize the relativity, but there are still things that make no sense even in Newtonian physics. Specifically, let’s look at the kinetic energy equation, which seems innocuous enough until you realize the implications…
E = ½mv²
Let’s look at some energies. For example, a walking person:
½ ⋅ 70 kg ⋅ (5 km/h)² ≈ 70 J
That same person standing in a moving train:
½ ⋅ 70 kg ⋅ (100 km/h)² ≈ 27000 J
That same person decided to stand up and get a drink or something:
½ ⋅ 70 kg ⋅ (100 km/h + 5 km/h)² ≈ 29800 J
The kinetic energy gained by that person:
29800 J - 27000 J = 2800 J
Experience tells us that it’s not 40 times more difficult to walk in a moving train than on the ground. So there are two options here:
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Either NASA physics is fake and the Earth is most probably flat. But why would they keep this fact from us? Simple: flat world = no space = aliens don’t need FTL to reach us = UFOs are alien airplanes from beyond our 6 continents. And people who’ve seen them up close probably realize that we are completely defenseless. So NASA probably does this this to avoid mass panic.
Tremulous should of course be set in the future where we can finally put up a decent fight.
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These physics are true and you can actually create energy out of nothing by mentally adjusting your frame of reference, which is the basis of all magic. It’s probably impossible for most people to truly override their basic instincts to take real advantage of this law, and people who manage to do this keep the magic to themselves.
This probably is not as groundbreaking as the previous option, but can certainly add some backstory behind e.g. telenodes and other “implausible” technologies.