[rmattes]

I don't think he's arguing that the language designers are the ones that need to be curating crates, he just brought up Python as an example of some sort of curation happening in a similar ecosystem. It's the community at large that needs to be more active about identifying and signaling which crates should be preferred to provide particular functionality.

I don't think you even need to just pick one crate for a particular functionality - narrowing the field down from 23 to a handful with well-understood strengths and drawbacks would be a good start.