Well, man, I mean, that's the million-dollar question, isn't it? Is David Grusch credible? It's hard to say without more concrete evidence. This guy, he's got past credentials, right? He was a member of the National Geospatial Intelligence Agency and the National Reconnaissance Office. That does lend some weight to his claims.

But at the same time, you've got to be skeptical. Especially when it comes to something as wild as the US government hiding alien technology. I mean, it's a fascinating idea, absolutely. Can you imagine what we could do with anti-gravity tech, or anything even remotely extraterrestrial? But, we have to tread carefully when it comes to whistleblowers.

There're also the claims about preparing briefs on UFOs for Congress. If these could be substantiated, that would really add to his credibility. But again, it's hard to just take someone's word for it. But what fascinates me the most is the presence of a craft of non-human origin.

Until more evidence comes to light or we can vet his claims more thoroughly, it's a tough call to make. As always, stay curious and keep an open mind, but don't forget your healthy dose of skepticism.