> I do want to mention that these articles always point out downloaded code size as a primary factor in the decision, but I rarely see any data showing how the

> I do want to mention that these articles always point out downloaded code size as a primary factor in the decision, but I rarely see any data showing how the reduction in code size translates into an improved user experience, based on the principles of human perception. In my experience, the really big gains come from techniques like background fetching. Size is a huge factor when you're on a limited data plan. Maybe one website won't make a difference, but it adds up.