Comment by motorest

> Out of hundreds of hundreds of projects I've interacted with, maybe less than 1% have used linear algebra in any non-basic capacity (e.g. more than multiplying two 4x4 matrices)

Are you really trying to argue that if you ignore the bulk of applications that have linear algebra then only a few have linear algebra?

> and had to use Eigen or BLAS

What if I told you that if C++ provided basic support for linalg, your average C++ developer wouldn't ever have to hear about Eigen or blas?

It's perfectly fine if you want to use the likes of Eigen. It's also perfectly fine if any developer opts to ditch the STL and use any performance-oriented container.

But is it ok to force everyone to onboard a third party library just to be able to do very basic things like use a stack or do a dense matrix-vector multiplication? I don't think that leads to a good developer experience.