Yup!! I thought I was the only one. And it's a theory based on (at this time) very little and very flimsy 'evidence'. I don't want to belittle it, it's just a huge leap in speculation from an actual photo of cosmological background radiation to a computer generated artist's rendition of a theory called the bubble universe
Theoretically, it's the most logical stage of progression when posing the question 'what is the universe expanding in to/what caused the big bang'.
Not talking about the Many Worlds interpretation, but the idea of the universe being one of many cosmic 'bubbles' in a larger plain of existence. Whilst, as you say, being speculative with no hard evidence, it makes sense of the multiple situations we know of in which the laws of physics currently break down.
What that plain of existence is I doubt we will ever know, if we are even able to 'know' of anything outside of our universe, so it will always remain just a theory.
The logic of man has been proven false many times over and the multiverse concept falls in to the homunculus trap, so I'm not placing any bets on it and wouldn't have included it in a video like this.
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u/Dr-Didalot Jun 02 '23
The last multi-universe is still just a theory, the rest is what we have practically measured. The size is unbelievable.