Whether you call it a data-driven prediction or think of it as a self-fulfilling prophecy, Moore’s Law has been going strong. It’s approaching half a century despite frequent observations that it can’t continue forever (Gordon Moore himself only gave it a decade).
Moore’s formulation was that the density of transistors on an integrated circuit doubles every 18 months. (He actually first said 12 months, then 24 months — but the average stuck. It’s a “law,” not a law, after all.) But here’s my way of formulating Moore’s Law: Everything good about computers gets an order of magnitude better every five years.
So why bother with the intervening steps? If we know that computers will improve by a factor of 100 in 10 years, why not go directly to the higher factor instead of just getting a factor of 10 in five years?
Because inventors, visionaries, engineers — whatever you want to call them — have to arrive at each level before they can even imagine a way to the next one … and then create it. That’s how Pixar and its first film Toy Story — the first feature-length computer-animated film — became a reality.
The secret was Moore’s Law, and not just in the technical way one would think. The enabling idea of our vision was computation, of course, but the idea of computation alone would not have gotten us far. Ed Catmull (who would cofound Pixar with me) and I also used the Law to anticipate the future and make good business decisions through the long years we waited for the computer animations we all envisioned to become reality.
We — Catmull (now president of Walt Disney Animation Studios), I, and our colleagues — conceived the notion of the first completely digital movie almost four decades ago. It took 20 years to realize that dream with Toy Story, but Moore’s Law is what gave us the confidence to hang on for those two decades.
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