It's pretty impressive to pull off live(he interacts with chat so I don't think it'd be prerecorded. Could check the accounts that interact with him and see if they were made recently) if it's fake. Its an instant internet horror classic tbh

I do hope it's fake since otherwise that dude is dead as shit. Even without suspending disbelief enough to say it's a UFO power core or some shit, if it isn't staged something extremely bad happened.

The poor quality of the engravings leads me toward "probably obvious bullshit" though. You can see the tool marks and I'd hope aliens would have a better hand BUT the engravings being poor quality doesn't mean it can't be a housing thingy for something incredibly radioactive. That doesn't explain the floating blue light though. I think visible radiation light typically comes from the radioactivity source

I imagine if it was radiation the incident would be known about since it'd be gushing radiation into some dudes house