You really put great effort and intellect into this thread. As you can tell by my name, I embrace Kardashev scale possibilities. I think my personal limit is 6. 1=local star. 2=local galaxy. 3=multiple galaxies simultaneous (my opinion of 3, as well as the following), 4=entire universe of galaxies. 5=multiple universes and finally 6=Top Dog, end of the line.
I sometimes ponder all the great voids out in the Cosmos. Wondering if perhaps a higher level Kardashev found an abundance of antimatter and then harvested the stars/galaxies within any particular void. I understand there is no observation evidence of antimatter/matter energy bursts from voids as we see them. Still, over billions of years of harvesting, perhaps the evidence has deteriorated beyond detection.
Anyway, great thread and GJ with all the supporting documentation and pics!
I doubt there has been a alien civilization that has reached Kardashev scale 2 much less the higher ones. I would assume most species's go extinct before that or don't expand enough to actually get that far. To say there is no evidence that within our volume of the universe we can see clearly of any mega-structures, but then again you wouldn't be able to see the star if there was something such as a dyson's sphere containing it. To say the Kardashev scale has big leaps in it of thousands and millions of years between different levels.
Edited by VictorMedvil, 04 October 2019 - 12:34 PM.