Anonymous 04/28/2021 (Wed) 01:31:40 No.4395 del
There is proof, called Google Earth, as ironic as that is. The island has been underwater for so long, though, it is probably unrecognizable due to volcanic activity.
To pose that an island isn't real cause you cant see it is proof you dont understand geology.

As far as the technology goes, I dunno, Alexandria had a lot of advanced stuff, and humanity has had multiple technological resets, so hard to say.