I’ve always thought 12 was a good number. I slightly prefer six because it’s great with eggs. I can eat any number of eggs from the six and still maintain some sort of symmetry — or at least a pleasing pattern — with the eggs that remain in the box. Even removing one egg isn’t too bad, although it leaves the least pleasing remainder.
Twelve isn’t quite so good because removing one egg leaves things unbalanced, which is why I always have two boiled eggs for breakfast. But it’s still better than 10, which, as the BBC video shows, is often hard to divide up into useful parts.
If you’re in IT you’re probably used to working in bases different to ten, most notably hexadecimal and of course binary, but I like the idea of a dozenal base.
It’s just me that cares about the symmetry of eggs in a box isn’t it?