[mononcqc]

I have never seen a language or framework used at a large scale that did not require digging, understanding, and tweaking of the underlying machinery for its specific use case.

The true failure of the platform happens when you cannot do these tweaks and adaptation, or that their cost is shadowed by having written it in a more appropriate technology at a lower time/cost/effort budget.

[janekm]

That's a good point. The article is certainly a good summary of what's needed to make Erlang/Elixir scale and a reminder that there are no "magic bullets".