That 2x is being assumed to apply to all 8 devs, so if you 2x the performance of 8 devs you get 8 extra devs worth of productivity. I assume the logic is that if that took 1 person worth of effort, then that person had 8x output.

I imagine they’re saying that since the team is overall twice as productive, you could say this manager who got them there made each individual 2x productive. And if you add all those together you have > 10x impact.

Napkin pseudo math for sure.. but when has that even stopped us from categorizing engineers with these labels.

I think they mean by helping 8 people double productivity they achieved at least 10x maybe 16x

I suppose you could also be 10x everyone else you work with by deliberately sabotaging the rest of your team...

It’s only 10x if he is so productive that he doesn’t have time for his teammates;)

Doubling is 10x in base 2.

Logarithms probably