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I often use the speed of light and nanoseconds as an example of we cant have infinite performance. But that was back to at best 2013. But this goes back to 1998. I just wish I had this quote known earlier.

We are now definitely near the end of the S curve. May be Another 10 years of node advance and small incremental IPC progress. I often wonder, what's next. Or are we... nearly done and its all software?

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> nearly done

With silicon based physical chips, I imagine this is true. I would guess, like some speculative science fiction, that the next leap in performance would be an entirely new concept. Who knows what is possible?

We still got one unused dimension. We're not done until our chips are cubes or even spheres.

It's a lot harder to get the heat out. It's why we stack things like dram (HBM) or sram (AMD v-cache), and intensively used 3d in flash, but not yet heavy duty processing.

The more we go 3d on compute we have to cut ghz even more to reduce power, and that puts more burden on the programmer. Which we'll probably do some day.

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