The gist of it, as I remember it, is that radical design ideas were a bad investment while Moore's law ruled, because they were likely to be outperformed by simply shrinking the standard architecture; after Moore, design gains in importance, but don't expect anything like the performance improvements of the past half century.
https://www.youtube.com/watch?v=JpgV6rCn5-g
The gist of it, as I remember it, is that radical design ideas were a bad investment while Moore's law ruled, because they were likely to be outperformed by simply shrinking the standard architecture; after Moore, design gains in importance, but don't expect anything like the performance improvements of the past half century.