User blog comment:Eners49/The secret 0th hyper-operator?/@comment-2601:142:2:EC49:A496:CA1D:3DA2:B5DD-20180728144329/@comment-2601:142:2:EC49:DBE:8843:FA94:CC76-20180728201400

@Eners49 I made a "? notation" page on the fan-made googology wiki! http://fanmade-googology.wikia.com/wiki/%3F_notation If there's anything you think I should add or get frid of, let me know!