de Grazia, Alfred
Alfred de Grazia (1919-2014 ) was a noted educator, philosopher, political scientist and catastrophist. In his latter role, he adopted many of Immanuel Velikovsky’s ideas. He met Velikovsky in 1963 and subsequently compiled and published The Velikovsky Affair which exposed the efforts by members of the academic community to block the publication of Velikovsky’s books.
>Quantavolution is a word coined by de Grazia to explain the idea of sudden and drastic changes to the Earth – to the planet itself, environment, life forms on it, culture – normally brought on by catastrophes. Instead of the idea of uniformitarianism which is very very slow changes. In his book Chaos and Creation  he offered an introduction to Quantavolution.<
He clearly supported the reality of Atlantis noting that “if Plato lied in his tale of Atlantis, there would be little truth in him generally: for Plato repeatedly insisted that his story be considered seriously and literally.” He placed Atlantis in the North Atlantic and dated its demise to around 4000 BC. He identified the confederation of Atlantis as the megalithic cultures of the northeast Atlantic stretching from Scandinavia to Spain and dated its demise to around 4000 BC. In chap.18 of a more recent book, The Iron Age of Mars, available on his website, he discussed the theories of both Jürgen Spanuth and Felice Vinci and their belief that the Scandinavians had influenced the development of the Mycenaean civilisation in Greece.
He had a very extensive website(a), which is still live (Oct 2021) and covers a wide range of subjects.