I think 'we're first' is unlikely, but the universe is so unimaginably large that we could well be first in the little bubble we can readily observe. Alternatively, another civilization has come and gone, and we've yet to spot it's remnants.
I don't buy the whole idea of 'we just can't see them'. We're very good at detecting signal from our physical world, and any advanced civilization is going to be noticeable as they start harvesting the power of nearby suns.
Maybe you're right though, maybe 'dark matter' is the mass of other multiverses and gravity is the only force that bleeds through.
I don't buy the whole idea of 'we just can't see them'. We're very good at detecting signal from our physical world, and any advanced civilization is going to be noticeable as they start harvesting the power of nearby suns.
Maybe you're right though, maybe 'dark matter' is the mass of other multiverses and gravity is the only force that bleeds through.