Languages don't scale (out), architecture does. Well, maybe Elixir and Erlang scales out, since architecture is baked in. Depending on how performant a langua

Languages don't scale (out), architecture does. Well, maybe Elixir and Erlang scales out, since architecture is baked in. Depending on how performant a language is, it can put off (sometimes forever) your need to scale out, which can simplify things. But both Github and Shopify are beyond the level of traffic that would allow you to get away with only scaling up rather than out.