Epistemic status: Big if true/I am clearly an idiot for even posting this.
Some apparently real journalists have been approached by (& approached) several intelligence officials, some tasked specifically with investigating UFOs, who claim that the DoD has had evidence of alien intervention for a while in the form of partial & mostly-whole fragments of alien aircraft. A followup article where the publication outlines how the editors verified this persons' and others' claims and affiliations is here, and a part 2 is expected tomorrow.
For some reason - very possibly because it's complete nonsense, or because they haven't had time to independently verify - the story has only been picked up by NYMag so far. The consensus among the people I've been reviewing this article with, is that it's either a complete hoax (i.e., the entire thing nearly top to bottom is some deliberate deception) or there's a non-negligible (>5%) chance aliens are here. I would love for someone who has a good understanding of the material to give an explanation (including possibly on priors, just thinking clearly about the content of the article) of why my friend group should discount this out of hand.
Thus far I have been unconvinced by most stories of why we should to-the-point-of-not-caring-about-UFO-sightings-expect Aliens have to be big and obvious and tile the universe with fun, as opposed to operating some sort of noninterventionist monitored lightcone.
If crafts are real, it would be an argument for inter-dimensional travel rather interstellar, because it could be cheaper and require less time and energy.
Maybe there is a way to relatively cheaply move between Everettian branches and hobbyists in the 22 century and routinely doing this as often as we use recreational small airplanes.
Presumably humanoid bodies inside the crafts is argument for inter-Everettian travel, as some branches can split from our branch like 100K years ago and are very similar to our, except having develop technologies earlier.
But the question is why we are not colonized by inter-dimensional paperclipper AI?
My assumption is that most branches don’t get extradimensional dictators so it’s unlikely we will. (I suppose it’s not impossible that some individual or civilization could have created a super intelligence to police the universe, I’d have to think about it).
My first question to Grusch would be is he basing his claims of exotic material discovery off a physical analysis? Or is he basing it off of his interpretation of a physical analysis? Then, is that analysis available for public scrutiny?