I really like the point about considering cloud computation costs. It would be great if individual developers could get feedback like, "This patch caused X% CPU

I really like the point about considering cloud computation costs. It would be great if individual developers could get feedback like, "This patch caused X% CPU cost per request, resulting in Y% monthly cost increase to keep projected usage below alert trigger levels." I also like the note about the headless abstraction, although I think it could gain some strength by talking about AWS Lambda or the actor model. But, I think the dedication to writing perfect code without executing it is misguided. It's 2018 - we have interactive debuggers, excellent profiling tools, and unit tests. Most developers have a computer with 4+ cores and 8G+ of memory. It would be foolish not to take advantage of that.