@Lady@glitch.cat.family there is much we do not know of physics, and there may be loopholes… but that’s not quite violating the laws of physics so much as our understanding of them.

undecidability, however… maybe it’s just because of familiarity with it, but that seems more difficult to get around.

otoh, antigravity may never be a thing, but you can still throw a computer the size of a planet at an undecidable problem and as long as you keep n small enough you may actually get an answer