Build times can affect morale and productivity in a very stepped manner. A 30 second build might be fast enough that you don't lose context, don't feel the nee

Build times can affect morale and productivity in a very stepped manner. A 30 second build might be fast enough that you don't lose context, don't feel the need to work around it, etc. But suddenly 40 seconds is just long enough that now you go and browse another site while it builds, and that always takes your focus for say 60 seconds. And so for 40-60 seconds the productivity hit is the same, but then maybe at 60 seconds you now need an extra minute to get back "in the zone" And so on