1) Atlantis is the missing piece of land between North America and Western Europe in the theory of Pangaea.
2) There are many pieces of evidences (e.g. Pictures of a city claiming to be Atlantis...) posted on the Net.
3) The descriptions of it are so attractive you have no choice but to believe it.
4) Your ancestors are Atlanteans!
1) You simply do not believe in myths.
2) The area of Atlantis was too big to be fitted into the North Atlantic Ocean...
3) Atlantis, a big landmass, could not have just sunk overnight despite the number of natural disasters that occurred there.
4) There is lack of evidence and you are not convinced.
5) There are too many different pieces of evidence on the Net you do not know which one to believe in.
6) Plato's description (the advanced technology at that time, the amount of riches...) are simply too difficult to believe.
You are all kindly requested to revisit Plato. Atlantis did exist and part of its remainings are the Azores islands. The disaster was of human activity [nuclear war?] 15.000 years ago