[maze-le]

> existence being coexistence after the discovery of multiverses

Please keep in mind that multiverses haven't actually been discovered. They are a very real possibility if the model of inflation of the early universe (and thus eternal inflation) is correct. But since the Planck satellite hasn't found conclusive b-mode polarisation patterns, inflationary models should be viewed with a bit of scepticism. On the other hand: inflation can explain a lot of problems in the early universe that would arise without it: magnetic monopoles, the large-scale homogenity and isotropy and geometric flatness. So, it remains a valid model, and the best explanation of the very early universe.

We should be aware of the things we don't know, and not just assume multiverses, when there is no conclusive evidence.

[lz400]

Multiverses as a result of space receding faster than speed of light are pretty much universally accepted. Other kinds are more controversial. There are galaxies not co-existant with us in the future that are now.

[maze-le]

Ahh, I see, we were talking about different concepts of the multivese then. I'd consider your definition of multiverses still as part of our own universe, just not our observable universe. But I think this is more a question of definition...

[lz400]

For the existence and coexistence they amount to the same. There are galaxies now that will leave our co-existance in the future and still exist. Disproves that existence implies co-existence.