At a growing massive company it's not about efficiency but total outcome. If 10x the engineers gives you 10% more revenue then that's worth it economically if t

At a growing massive company it's not about efficiency but total outcome. If 10x the engineers gives you 10% more revenue then that's worth it economically if the pie is large enough. 10% of 4 billion a year can pay for a lot of engineers. Once you're no longer growing then you need to focus on efficiency as more engineers rarely translates to more total revenue in that case.