From what I've understood [0], Atlantis was never meant to be a myth, it's only a fictional alternative version of Athen that Plato conjured up as a political allegory. It's like Batman's Gotham City, it only serves to evoke New York / Chicago.
Though to be fair the concept of a powerful city lost to time is something that resonates a lot, and there's multiple similar myth like the isle of Ys, the lost continent of Lemuria, or in the arabic folklore 'Iram of the pillar', often called 'Atlantis of the sand'.
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From what I've understood [0], Atlantis was never meant to be a myth, it's only a fictional alternative version of Athen that Plato conjured up as a political allegory. It's like Batman's Gotham City, it only serves to evoke New York / Chicago.
Though to be fair the concept of a powerful city lost to time is something that resonates a lot, and there's multiple similar myth like the isle of Ys, the lost continent of Lemuria, or in the arabic folklore 'Iram of the pillar', often called 'Atlantis of the sand'.
[0] There was an episode on it in the excellent podcast 'In Our Time' by the BBC (https://www.bbc.co.uk/programmes/m001c6t3)