Talk Sense discussion

Surely that is made up....

Well no not till you mentioned it but there is stuff online

I don't have information on it as such, although i've heard various different stories. such as a previous species which inhabited our planet long before us, an alien 'prison'. actual aliens and humans working together, etc.

I personally think it's just an underwater military base used for testing new technology but I guess nobody can be completely sure.

The Moon.

Moon's option sounds sensible