No, no it wouldn't. You're still using math, you're just using a different language. If apple bananas becomes apple pears after being hit by a bullet, you've changed the value. That is what math describes. You cannot avoid this. This is how computers work, and math is just another language to describe things. Even if every health value is a string, you still need to keep track of which string is currently in use so that you know when to kill the player. That requires math. That is what they're talking about. It is not the in-game health indicator that is public domain, it is the actual health value in RAM that is generated and modified during gameplay.
It is better this way. Copyright is already abused to hell and back, if they expanded copyright to cover this kinda stuff then it would potentially destroy things like right-to-repair as companies could claim copyright infringement on anything that modifies their code.
Nah. It's "ancient" vs "modern". "Modern" is anything well-documented or easily translated into English, "ancient" is anything that lacks documentation or has ambiguous translations. Some things I've seen ancient alien people freak out about: Stonehinge, pyramids, roman dodecahedrons, antikythera mechanism, ancient astronauts, UFOs in medieval/Renaissance art (yes, that is supposedly a thing), Nazca lines, and more.
My point is that anything even remotely weird or inexplicable with any historical ambiguity is up for grabs when it comes to ancient alien theories. At least, that's been my observation.
*shrug*