I like even numbers. I like numbers to be divisible by two. If they’re divisible by five, even better. Divisible by both is the best.
I discovered this while driving. The cruise control has a digital readout. I don’t have to look at it while I’m driving. I can leave the monitor set on another screen. But if I look at the readout, I find myself wanting it set on an even number, a whole number. I don’t want it set on 60.5, I want it set on 60. I’ll set it on 62, but not 61. Even numbers, or divisible by 5.
Now that I recognize the trend, I notice it in other endeavors, like setting the digital thermostat. I’ll set it on 70 or 72, but no way I’ll set it on 71.
I don’t know why these numbers matter, they just do.