If you want a spoilery TLDR:
It's more about the journey. He tracks down the origin, finds the support, finds the support flawed, and leaves you to your own conclusion rather than make a new flawed one.
The basic idea is that the origin assumes a highly critical inner hot loop, don't assume where it is, and optimize there.
There's some other time spent saying this justifies slower abstractions for maintainability elsewhere.
The basic idea is that the origin assumes a highly critical inner hot loop, don't assume where it is, and optimize there.
There's some other time spent saying this justifies slower abstractions for maintainability elsewhere.