I finished a book a few months ago that I am almost 100% sure that I first purchased during the COVID-19 pandemic - Jared Diamond's Pulitzer Prize-winning book, Guns, Germs, and Steel. I really enjoyed it, and now I am ready to read his next one (which, of course, is also sitting on my bookshelf). The theme of the book can be summarized with one simple question - "Why did history take a different course on different continents?" Diamond begins his detailed answer and explanation with a simple story about the invention of the typewriter. He claims that the original keyboard that is widely used today (called the "QWERTY" keyboard, because the first keys on the top left are the letters Q, W, E, R, T, and Y) came about as a result of "anti-engineering" when first designed in 1873.
Diamond writes, "QWERTY...employs a whole series of perverse tricks designed to force typists to type as slowly as possible, such as scattering the commonest letters over all keyboard rows and concentrating them on the left side (where right-handed people have to use their weaker hand). The reason behind all of those seemingly counterproductive features is that the typewriters of 1873 jammed if adjacent keys were struck in quick succession, so that manufacturers had to slow down typists."
The very first commercially successful typewriter was called the Sholes and Glidden typewriter (also known as Remington 1), as it was first designed by the American inventors Christopher Latham Sholes, Samuel W. Soule, James Denmore, and Carlos S. Glidden. Their design was later purchased by E. Remington and Sons, ironically enough, a firearms manufacturer (perhaps the pen is mightier than the sword) in 1873. Whenever a letter key was pressed on this early model (and most models that subsequently followed), the corresponding type-bar (which looked like a hammer with a letter on the end) swung upwards, striking an inked ribbon and pressing the letter onto the paper. The paper was held on a rotating cylinder that moved incrementally after each keystroke, allowing for sequential typing. If the typist hit each key too quickly, the type-bars would get tangled and the typewriter would jam. The QWERTY arrangement of keys reduced the likelihood that the type-bars would jam, by placing commonly used combinations of letters farther from each other inside the machine. At least that is how the story supposedly went.
Fast forward to the 1930's, when improvements in the design of the typewriter eliminated the risk of jamming (or at least significantly reduced the risk). The layout of the keys was changed, resulting in a significant increase in typing speed (almost doubling the number of words that could be typed per minute). For example, August Dvorak patented his Dvorak keyboard, which not only increased the typing speed, but also reduced repetitive strain injuries because it was much more comfortable.
Again, Diamond writes, "When improvements in typewriters eliminated the problem of jamming, trials in 1932 with an efficiently laid-out keyboard showed that it would let us double our typing speed and reduce our typing effort by 95 percent. But QWERTY keyboards were solidly entrenched by then. The vested interests of hundreds of millions of QWERTY typists, typing teachers, typewriter and computer salespeople, and manufacturers have crushed all moves toward keyboard efficiency for over 60 years."
Diamond used the QWERTY analogy to explain how history may often be explained by serendipity. In other words, some chance event leads to an eventual outcome that is unexpected, unforeseen, and unplanned. The economists Paul David (see "Clio and the Economics of QWERTY") and Brian Arthur ("Competing technologies, increasing returns, and lock-in by historical events") have used the QWERTY story to talk about the concepts of path-dependence ("history matters") and increasing returns ("an increase in input results in a proportionally larger increase in output"), respectively.
It's a great story. Unfortunately, it's a somewhat controversial one. I would also recommend taking a look at an article by Stan Liebowitz and Stephen Margolis, "The Fable of the Keys" and Peter Lewin's article "The market process and the economics of QWERTY: Two views" for a balanced argument.
I'm not here to dispel any myths or provide a counterclaim to the QWERTY story. If I were to be 100% honest, I'd like to believe the story as presented by Jared Diamond (although I don't think he was the first to make the case). What is not controversial is the fact that almost every keyboard in use today is based upon the original QWERTY lay-out. It would be hard to change at this point. Whether you call it "first-mover advantage", "path-dependence", "network effects", or "increasing returns" probably doesn't matter. I don't see the QWERTY lay-out being replaced anytime soon.