Earlier quoted context omitted.
Why are you writing years as if they are C octals? Standards in communication are important.
Perhaps he's from the future and still has nightmares about the crisis of 9999.
Our systems initially supported this. But we found an extremely popular and widely used date parsing library has terrible bug. For some reason (if forgot what) as part of its logic it checks something about the date after the date it’s parsing.
So for users of this extremely popular library the 9999 crisis will actually happen a day early.
I kept trying to alter the non responsive maintainers that there was going to be a major crisis with their product in about 7000.
They never got back to me.