"Perhaps Arthur C. Clarke was being uncharacteristically unambitious. He once pointed out that any sufficiently advanced technology is going to be indistinguishable from magic. If you dropped in on a bunch of Paleolithic farmers with your iPhone and a pair of sneakers, you'd undoubtedly seem pretty magical. But the contrast is only middling: The farmers would still recognize you as basically like them, and before long they'd be taking selfies. But what if life has moved so far on that it doesn't just appear magical, but appears like physics?"
The original submitter included their own counterarguments against the idea, but the astronomer follows his proposal to its ultimate conclusion.
"Perhaps hyper-advanced life isn't just external. Perhaps it's already all around. It is embedded in what we perceive to be physics itself, from the root behavior of particles and fields to the phenomena of complexity and emergence."