This is an idea that possibly explains why we can't seem to find extraterrestrial life via SETI - they (aliens) always find a way to manage to self-annihilate themselves. (!!)
From National Geographic
That’s why a trio of scientists recently published a guide to help astronomers detect alien apocalypses—whether it’s the chemical signature of a world filled with rotting corpses, the radioactive aftermath of nuclear warfare, or the debris left over from a Death Star scenario where an entire planet gets blown to bits.
Call it SEETI, the Search for Extinct Extraterrestrial Intelligence.
Link to article
Think they should be paying more attention down here before with end up like their research in no time.
I hope you mean that the 'they' referred to above is the various Governments of the world. The Scientists have been working for a long time on these and no one else seems to care or listen. The scientists keep at it anyway... a thankless task.
Here is a hoe with Joseph Farrell and I discussing his book, A Cosm.... Something I am highly into.. But seems there is more denial from scientist than approval.
The initial article referenced actually did have a Death Star scenario.
The rest of the items, in your video, are highly speculative. Those are not a good reason to get the masses motivated. You might get the Flat-Earth group to go with it <g>
But seems there is more denial from theosophists than approval towards scientists. <G>