[saghm]

> The Bus Factor is how hard your team would suffer if you - or anyone else on the team - got hit by a bus.

> Ideal Bus Factor for all team members is 0. This might sound counter-intuitive at first, almost like "make everybody expendable", but it's quite the opposite and kind of the point.

I've always heard bus factor described in the inverse fashion, as in "how many people would need to get hit by a bus for the project not to be able to continue", with the optimal number being the same as the number of people on the team. It sounds like the idea is the same, but I'm surprised to find out that the number people to convey the concept isn't always the same.

[Moru]

A number between 0 and 1 can easily scale to whatever company you have. A number that is different depending on how many is on your team is harder to compare between teams. I guess it depends on if you ask a programmer, administrator or mathematician what a logical system would be :-)

[saghm]

For sure! The simplicity of having the same ideal bus factor for all sizes definitely appeals to me, but maybe due to familiarity, I think I prefer the well-defined units from the version I cited. It's a bit of a https://xkcd.com/883/ situation in terms of how bad your imagination is for what "maximum suffering" would be.