Learning to Subtract
When predicting the future, people tend to add new technologies and products while ignoring the persistence of old ones. This cognitive bias leads to over-technologized visions and underestimation of enduring tools and practices.
THE IDEA
Learning to Subtract
Consider the futuristic projections made throughout the past century and a half, as expressed in literary novels such as those by Jules Verne, H. G. Wells, or George Orwell, or in now forgotten narratives of the future produced by scientists or futurists. It is remarkable that the tools that seem to currently dominate the world, such as the Internet, or more mundane matters such as the wheel on the suitcase of Book IV, were completely missing from these forecasts. But it is not here that the major error lies. The problem is that almost everything that was imagined never took place, except for a few overexploited anecdotes (such as the steam engine by Hero the Alexandrian or the assault vehicle by Leonardo da Vinci). Our world looks too close to theirs, much closer to theirs than they ever imagined or wanted to imagine. And we tend to be blind to that fact—there seems to be no correcting mechanism that can make us aware of the point as we go along forecasting a highly technocratic future.
There may be a selection bias: those people who engage in producing these accounts of the future will tend to have (incurable and untreatable) neomania, the love of the modern for its own sake.
Tonight I will be meeting friends in a restaurant (tavernas have existed for at least twenty-five centuries). I will be walking there wearing shoes hardly different from those worn fifty-three hundred years ago by the mummified man discovered in a glacier in the Austrian Alps. At the restaurant, I will be using silverware, a Mesopotamian technology, which qualifies as a “killer application” given what it allows me to do to the leg of lamb, such as tear it apart while sparing my fingers from burns. I will be drinking wine, a liquid that has been in use for at least six millennia. The wine will be poured into glasses, an innovation claimed by my Lebanese compatriots to come from their Phoenician ancestors, and if you disagree about the source, we can say that glass objects have been sold by them as trinkets for at least twenty-nine hundred years. After the main course, I will have a somewhat younger technology, artisanal cheese, paying higher prices for those that have not changed in their preparation for several centuries.
Had someone in 1950 predicted such a minor gathering, he would have imagined something quite different. So, thank God, I will not be dressed in a shiny synthetic space-style suit, consuming nutritionally optimized pills while communicating with my dinner peers by means of screens. The dinner partners, in turn, will be expelling airborne germs on my face, as they will not be located in remote human colonies across the galaxy. The food will be prepared using a very archaic technology (fire), with the aid of kitchen tools and implements that have not changed since the Romans (except in the quality of some of the metals used). I will be sitting on an (at least) three-thousand-year-old device commonly known as the chair (which will be, if anything, less ornate than its majestic Egyptian ancestor). And I will not be repairing to the restaurant with the aid of a flying motorcycle. I will be walking or, if late, using a cab from a century-old technology, driven by an immigrant—immigrants were driving cabs in Paris a century ago (Russian aristocrats), same as in Berlin and Stockholm (Iraqis and Kurdish refugees), Washington, D.C. (Ethiopian postdoc students), Los Angeles (musically oriented Armenians), and New York (multinationals) today.
David Edgerton showed that in the early 2000s we produced two and a half times as many bicycles as cars and invested most of our technological resources in maintaining existing equipment or refining old technologies (note that this is not just a Chinese phenomenon: Western cities are aggressively trying to become bicycle-friendly). Also consider that one of the most consequential technologies seems to be the one people talk about the least: the condom. Ironically, it wants to look like less of a technology; it has been undergoing meaningful improvements, with the precise aim of being less and less noticeable.
FIGURE 17. Cooking utensils from Pompeii, hardly different from those found in today’s (good) kitchens
So, the prime error is as follows. When asked to imagine the future, we have the tendency to take the present as a baseline, then produce a speculative destiny by adding new technologies and products to it and what makes sense, given an extrapolation of past developments. We also represent society according to our utopia of the moment, largely driven by our wishes—except for a few people called doomsayers, the future will be largely inhabited by our desires. So we will tend to over-technologize it and underestimate the might of the equivalent of these small wheels on suitcases that will be staring at us for the next millennia.
A word on the blindness to this over-technologizing. After I left finance, I started attending some of the fashionable conferences attended by pre-rich and post-rich technology people and the new category of technology intellectuals. I was initially exhilarated to see them wearing no ties, as, living among tie-wearing abhorrent bankers, I had developed the illusion that anyone who doesn’t wear a tie was not an empty suit. But these conferences, while colorful and slick with computerized images and fancy animations, felt depressing. I knew I did not belong. It was not just their additive approach to the future (failure to subtract the fragile rather than add to destiny). It was not entirely their blindness by uncompromising neomania. It took a while for me to realize the reason: a profound lack of elegance. Technothinkers tend to have an “engineering mind”—to put it less politely, they have autistic tendencies. While they don’t usually wear ties, these types tend, of course, to exhibit all the textbook characteristics of nerdiness—mostly lack of charm, interest in objects instead of persons, causing them to neglect their looks. They love precision at the expense of applicability. And they typically share an absence of literary culture.
This absence of literary culture is actually a marker of future blindness because it is usually accompanied by a denigration of history, a byproduct of unconditional neomania. Outside of the niche and isolated genre of science fiction, literature is about the past. We do not learn physics or biology from medieval textbooks, but we still read Homer, Plato, or the very modern Shakespeare. We cannot talk about sculpture without knowledge of the works of Phidias, Michelangelo, or the great Canova. These are in the past, not in the future. Just by setting foot into a museum, the aesthetically minded person is connecting with the elders. Whether overtly or not, he will tend to acquire and respect historical knowledge, even if it is to reject it. And the past—properly handled—is a much better teacher about the properties of the future than the present. To understand the future, you do not need technoautistic jargon, obsession with “killer apps,” these sorts of things. You just need the following: some respect for the past, some curiosity about the historical record, a hunger for the wisdom of the elders, and a grasp of the notion of “heuristics,” these often unwritten rules of thumb that are so determining of survival. In other words, you will be forced to give weight to things that have been around, things that have survived.
When to use it
When making long-term business forecasts, actively list technologies and practices that are likely to persist, and avoid solely focusing on new innovations.
In policy-making, evaluate the effectiveness of existing low-tech solutions (e.g., bicycles, condoms) before investing heavily in futuristic alternatives.
In personal life, cultivate appreciation for durable tools and traditions; question whether a new gadget truly replaces an older, reliable method.
When evaluating a startup or technology proposal, ask: what is being subtracted? Does it truly solve a problem that old technologies cannot?
FROM THEORY TO EVERYDAY LIFE
In practice
A Futuristic Dinner in 1950
Taleb contrasts a stereotypical 1950s forecast of early 21st-century dining—space-style suits, nutrition pills, and screens—with his own dinner plans. Shoes, cutlery, wine, glasses, cheese, cooking utensils, chairs, and taxis retain familiar forms or uses even as their materials and production change.
Bicycles vs. Cars
David Edgerton reported that in the early 2000s, bicycle production was two and a half times car production. Taleb uses this comparison to illustrate how an older technology can remain important while attention goes to newer inventions.
The Condom as Invisible Technology
Taleb points to improvements that make condoms less noticeable in use. The example shows how an important technology can change without becoming more conspicuous; progress need not resemble a futurist spectacle.
A MOMENT TO REFLECT
Put it to work.
Think of a major technology prediction from the last 50 years. What existing technologies or practices did it ignore? Why?
Look around your immediate environment. How many objects are ancient technologies (e.g., chairs, tables, clothing)? How does this affect your view of innovation?
In a domain you follow (e.g., business, education, urban planning), what is a current trend that over-adds new solutions without considering the value of what already works?
Often confused with
References
- The Shock of the Old: Technology and Global History since 1900 — David Edgerton (2006)
CONTINUE THE CONVERSATION
Source texts
- Antifragile (Nassim Nicholas Taleb)