It’s about levels of scale and abstraction. When you’re designing a car you don’t care about the innards of the calliper. Reducible complexity, and modelled inputs and outputs. If something seems wonky it gets looked at more closely - either the model or the concept is wrong.

I can’t draw for shit, but I can and do make complex devices and systems with no written plan, just a picture in my head.

Oh, and I’ve put on well over 5lb of muscle this month, by doing brutal hours of manual labour and eating like a horse. Being out of shape but historically stacked makes it a world easier.