In the 1950s and 60s - even leading into the 1990s - the cost of storage was so high, that using a 2-digit field for dates in a software instead of 4-digits could save an organization between $1.2-$2 Million dollars per GB of data. From this perspective, programming computers in the 1950s to record four-digit years would’ve been outright malpractice. But 40 years later, this shortcut became a ticking time bomb which one man, computer scientist Bob Bemer, was trying to diffuse before it was too late.