2022 https://books.google.com/books?hl=en&lr=&id=yoyEEAAAQBAJ&oi=fnd&pg=PT5&dq=catastrophe%7Ccatastrophic%7Cexistential%7Capocalypse%7Cdoomsday%7C%22end+of+the+world%22+%22chemical+weapons%22%7C%22autonomous+weapons%22%7C%22major+conflict%22%7C%22super+eruptions%22%7C%22asteroid%22%7C%22cosmic+radiation%22&ots=NTwi06cFP4&sig=4253gPsDUuVPD5_tNwGA3jWl6F0