Hey, page #2116! They're playing my number! ;o)
The law of unintended consequences is not the same thing as Babbage's Law, which states that computers are never built on time.
[size=8pt]Charles Babbage, a British scientist and mathematician considered the "father" of the modern computer, started plans to construct a mechanical calculator called the "Analytical Engine". His designs for the Engine kept changing at a moment's notice, he was spending on it well beyond his budget, and it was ultimately never completed during his lifetime.
Consider another example, the ENIAC, which was started by the Department of Defence just before World War II to perform missile trajectory calculations for the war. It was finally completed in 1947, about 2 years *after* the war ended, and almost a million dollars over-budget.
Hence, Babbage's Law.