Does the external world exist?

That in itself is the answer to your question, a rosetta stone is all you need for if it is scientifically and mathematically and physically equivalent? Ain't but another way to look at things, at the world? Another perspective on the whole thing.

If the debate is eternal and even the gods and immortals can't decide, solve it(though some may secretly know the answer)... what can I say?

My abilities/algos for handling ever more massive bodies of information/ideas is skyrocketing.

 

Wittgenstein

Wittgenstein, public language bb, if you could say there's a high probability of there being other minds, then its not to far a step to say that the external world exists to house them