Remember the dreaded Y2K bug that threatened to destroy not only the Internet, but life itself? With Y2K, the common thought was that as 1999 turned into 2000, worldwide computer networks would crash in transition.
In short, this is because in computers, years were designed to be two-digit numbers instead of four, in order to save memory space. The logic was that while the computer could recognize 99 as 1999, it would identify 00 as 1900 and not 2000, collectively breaking the Internet and other networks. Then came panic, uncertainly, people rushing to build bunkers. Of course, everything worked itself out in the end.
But now, there's a similar problem that could break the Internet, but not if Google has anything to say about it. The search giant is hard at work to try and solve the problem before we see an outage or horrible meltdown.