Yeah but they're often trying to predict where the software industry will go years in advance. You can see that in the disagreements between AMD and Intel on AV

Yeah but they're often trying to predict where the software industry will go years in advance. You can see that in the disagreements between AMD and Intel on AVX-512: there's a chicken and egg situation where it's not always clear what's right to optimise for, as it depends on changing workloads and software platforms. For instance the big chip companies were caught out by the need for low precision maths for AI inferencing. That all came out of Google.