You're assuming that IO and CPU are equal. CPU speed is getting faster at a much higher rate than IO. It makes sense, one is infrastructure, the other is the s

You're assuming that IO and CPU are equal. CPU speed is getting faster at a much higher rate than IO. It makes sense, one is infrastructure, the other is the silicon in your pocket. That's why you're getting downvoted, and why algos always push more and more to the CPU. Statistically, the correct posture is to expect the CPU to consistently get faster. I mean, if you make an image format now, you want it to work with CPUs in 30 years. Will IO speed gains overtake CPU improvements in 30 years? Most certainly not.