I have recently heard of this theory that the women who prcreated with the angels (the ones who created the nephilim) were cast into the sea and had their legs closed so they could no longer reproduce and we call them mermaids/sirens.
Also, the Leviathan is real and alive and is the reason we are no longer exploring the ocean.
Ah yes, what was I thinking - there’s no space for houses because of the big funnels that collect all the dead birds and turn them into chicken mcnuggets!