Elixir, Golang, maybe even Rust (that one is a hard sell though, there could be a lot of friction at the start and part of it persists even when the project matures).

Literally none of those languages existed when Shopify was launched. Did you expect them to get into a time machine or make that happen or what?

True, I lost track of the original problem, sorry.

Still, at one point it's OK to admit the original tech is no longer as useful and migrate to something else IMO.

I appreciate your admission here.

We can disagree about usefulness I guess. Ultimately Ruby has worked just fine. They didn't report massive issues, and the DB is going to be the bottle neck way before Ruby, so I just don't see an issue.

If I knew I was building a site for a massive load would I use Ruby? No. But I don't think it's a terrible choice either.