I've been a programmer for over 20 years, a gamer for longer than that, and I can understand more out of a Rainforest Ecology or an Iron Mine Geology article than I can make up from this one. Make you think about just how complex computers have become and how broad Computer Science is.
I understood the main points pretty well and the reasoning behind most of them. I don't work in the gaming industry. I draw upon these resources for my context:
I say this only to make the point that optimization is not completely inaccessible to the average person. It is useful to understand what the hardware is doing--up to a certain point; good abstractions are also necessary.