[pinkmuffinere]

Not strictly what the author is talking about, but I once made a mediumly-impactful change by reducing a single character from a 6 to a 5. I worked on controllers for three phase motors, and we did something called “third harmonic injection” to use about 15% more of the bus voltage than a naive strategy would. Somebody had previously remembered incorrectly, and was trying to command 16% more voltage, which would cause a math error and suddenly make everything crash. At the time, this was somewhat mysterious. Changing the 16 to a 15 fixed it, lol.