The Moore’s Law of Moore’s Laws

Published in the November 2015 issue of MRS Bulletin.

Fifty years ago, a quiet, 36-year-old chemist named Gordon Moore penned an innocuous article in the trade magazine Electronics. In the article, Moore, who was in a unique position as the head of R&D at Fairchild Semiconductor, put forth a prediction about the nascent semiconductor industry. After seeing transistor counts jump year-to-year from roughly 8 to 16 to 32 to 64, Moore forecast that this exponential progress in integrated circuits would continue unabated until at least 1975, and perhaps beyond.

Half a century hence, I’m typing this out on a computer packing more than 1,400,000,000 transistors - for those keeping score at home, that’s about 30 doublings. To call Moore’s 1965 prediction a success would be like calling Serena Williams a decent tennis player. Usually, a prediction is fortunate if it correctly predicts the future just once, but when a prediction is right again and again, decade after decade, it’s practically a miracle.

And when I call Moore’s law a miracle, I’m not even sure it’s hyperbole. The exponential rise in computing power has lifted living standards around the world and forever changed the way humans work and play (and even how they watch British babies bite fingers. Bad Charlie!).

Given the success and fame of Moore’s law, it is no surprise that, like a rock star, it would attract groupies and posers and copycats and coattail-riders.

Suppose you are a materials scientist trying to publicize your research but failing to get any traction. Every year, you improve your material, but beyond some rote applause at a conference and a citation or two, no one seems to care. How can you hope to attain some hype?

Here is a simple strategy. Do you research batteries? Then talk about the Moore’s law of batteries! Do you research materials for nuclear fusion? Talk about the Moore’s law for fusion! Do you research how paint dries? Talk about the Moore’s law of drying paint!

Comparing your research to Moore’s law is an instant recipe for getting your audience to imagine how your work might one day spawn entire industries and radically transform the world. And the best part about exponential growth is that it starts small. If anyone ever questions whether your work actually is world-changing, you can just rebut that while your first steps are admittedly small on an absolute scale, that is how all exponential curves start. Only after growing exponentially for decades will they become obviously huge.

Riding coattails is a time-tested strategy, and in the world of materials science and technology, there may be no bigger coattails than those of Moore’s law. So it is hardly a surprise to see more and more scientists calling their research subject’s progress the “Moore’s law of _____.” In the past few years, I have heard scientists reference the Moore’s law of solar power, the Moore’s law of mass spectroscopy, and the Moore’s law of aircraft, to name just a few.

Seeing this recent explosion of references to Moore’s law got me thinking along the same lines as Gordon Moore 50 years ago. How fast are these pseudo-Moore’s laws being invented? Are they following any sort of predictable trend that would allow us to cautiously extrapolate? And is this merely a short-term fad or the beginning of a tectonic shift in science marketing?

Well, my dear reader, you are in for a treat. On your behalf, I have humbly performed some original scholarly research, scouring the web for every reference I could find to the “Moore’s law of X” and then tracing each back to its earliest mention. Deep into my study, I made a shocking discovery:

There is a Moore’s law of Moore’s laws!

For decades now, the number of Moore’s laws invented has been roughly doubling every five years. The first Moore’s laws were technical in nature (e.g., the Moore’s law of software or the Moore’s law of bandwidth), but as time passed, Moore’s laws were invented for topics far afield of computers (e.g., the Moore’s law of corn or the Moore’s law for NFL field goals).

Let’s extrapolate this exponential growth forward. If the number of Moore’s laws continues to double every five years, then by the year 2080, there will exist a Moore’s law for every single word in the English language (numbering a few hundred thousand to a million, depending on your degree of vocabulistic conservatism). We will have a Moore’s law of zebras, a Moore’s law of love, and even a Moore’s law of absquatulating (look it up!). At that point, for the Moore’s law of Moore’s laws to continue, we may need to start inventing new words. Are you ready for a Moore’s law of zakalaxing?

Of course, the other possibility is that at some point, this exponential growth will decelerate. As the poet Chaucer cautioned back in 1374, “All good things must come to an end.” Perhaps what so far looks like an exponential curve is really just the first half of its calmer cousin, the S-curve.

When it comes to the original Moore’s law of integrated circuits, the writing may already be on the wall (no, literally, there is a Moore’s law poster in my hallway). A constellation of facts suggest that the era of rapidly shrinking transistors is at last ending. Next-generation extreme ultraviolet lithography is years behind schedule. Graphics chips from AMD and NVIDIA have been stuck at the 28-nm node since 2011. And the industry’s most successful transistor shrinker, Intel, recently delayed its Cannonlake processor indefinitely, breaking the company’s famous tick-tock pattern of CPU releases. Ultimately, as transistors approach the atomic scale, it is becoming harder to make them cheaply and reliably.

If Moore’s law is ending, what does that bode for the Moore’s law of Moore’s laws? Well, just as Gordon Moore made a bold prediction at the end of his famous 1965 article in Electronics magazine, I will end this article with a bold prediction of my own:

Fifty years from today, I, like Gordon Moore before me, will be a CEO billionaire, famous around the world for first recognizing the Moore’s Law of Moore’s Laws. And you, dear reader, will be able to brag at dinner parties that you were among the first to read about it, in your very own issue of MRS Bulletin now framed on your living room wall.


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  42. 2015: Raspberry Pi clusters
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  54. 2015: Moore's Laws