Slow Compile Times Mean Death
Reduce slow compile times in the hot loop for development as much as possible. Use hot reload whenever possible.
Each additional second a developer is waiting for their code to compile after having made a change increases by 10% the probability they get bored and open Twitter, YouTube or some other black hole of internet consumption. Compounding.
Kinda reminds me of Google's observation that each 0.5s of delay reduces traffic by 20%.