What artifacts? That fictional story had fantastic, mythical weapon(s)? Mythical creatures that are super-powerful? Imaginary stories do not require any explana

What artifacts? That fictional story had fantastic, mythical weapon(s)? Mythical creatures that are super-powerful? Imaginary stories do not require any explanation. On to your second point, there is a world of difference between plausible, possible and confirmed by multiple independent sources. It is the reason we say Atlantis is a myth.