A century after the ship hit an iceberg on April 14, 1912, and three years after the death of the last Titanic survivor, the disaster feels as familiar as if it happened yesterday.

The centennial has seen an eruption of books, articles, films, museum exhibits, memorial services, ocean cruises and, of course, the 3-D version of the 1997 James Cameron movie that won an armload of Oscars. And there’s another layer of commemoration, the meta layer — the discussion of why we’re discussing this at all. The Titanic has become a case study in what the folks in the faculty lounge would call mythogenesis.

Below, James Cameron and his team pull together a new CGI of how they believe the TItanic sank and reached the ocean floor: