Do to really believe a snake talked?!

[John V]

Existence is eternal but that doesn't mean that we've already experienced an eternity of existence

Er, yes, that's exactly what it means.

Since existence is eternal then there's always more time to go... so it could be ages before the heat death.

If existence is eternal, than any number of ages you can name have already gone by.

And sorry but the entire concept of there ever being non-existence doesn't make sense. Non-existence can't be anything, non-existence is nothing, non-existence can't exist.

Not sure why you keep bringing this up, as I haven't argued against it.

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Maybe it will help if you answer this question: How old is something that has existed eternally?