You think that’s interesting consider the sqrt of 2, fantastic number, its what makes our system of paper sizing work.
Or Pi, how did anyone actually work out the value of that number anyway?
No seriously, you can measure it, but not accurately, someone had to work it out.
But in answer to your question, it’s mostly down to using sensible units of measurement, imagine what it would be if you were using imperial units…
This will bend your mind, you think in numbers based around ten. But a better number to base it around would be 12. Only 12 wouldn’t be twelve, it would a be 10, but with two extra numbers between it and 9.