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If you discover a hot new language/framework that solves all of your problems, then here is what you've actually learned: you didn't have any hard problems. No

• nathan_f77 10y ago
  He's right though, Elixir and Phoenix are amazing. It promises the productivity of Rails, while being blazingly fast and scalable. You'll never, ever need to rewrite your backend, even if you're handling traffic at the scale of Whatsapp. I would be hard-pressed to find a case where you'd want to write your web or mobile backend in anything else. So yeah, I'd claim that it's perfect for every web or mobile backend. Also, no framework is ever going to solve all of your "hard problems", and he didn't claim that at all. It's simply a much better base than Rails.
• brightball 10y ago
  It's about balance and this has the right one for about 95% of what I do everyday in terms of client-server-database work, productivity, concurrency, stability, performance and scalability. That's where I spend most of my time on the web. Short of complex calculations or extreme niche scenarios...it does handle pretty much everything in terms of "around web" work. For niche scenarios use what's appropriate but for the space that Rails has occupied in the general purpose realm it's wonderful.