Despite all of the hooplah about Y2K, computer programmers and protocol designers have not really learned from Y2K. Just because a problem seems far off, it should NOT be ignored. 30 years ago, the year 2000 seemed unimaginably far off and many protocols and programs were not designed to deal with it. Now, we see a similar problem on the horizon and we fear that most computer professionals are again looking the other way.
Starting with the year 10,000, years will have 5 digits.