I believe it is possible.
We have a great deal of evidence in support of Atlantis. Much of it is circumstantial, but highly suggestive. And interpretations against are just that -- interpretations!
But we also have proof! Three items of scientific knowledge involve world-changing events (9620 BC) that occurred about the same time Plato's Atlantis supposedly sank. Two could have been caused by Atlantis or some other phenomena or events. But one of the three could only have been caused by a massive tectonic subsidence somewhere in the oceans of Earth. The coincidence with Plato's date (9600 BC) makes Atlantis the likeliest suspect.
The fact that all four incidents happened at the same time makes this seem more than merely a coincidence.