[jb3689]

> Also you need to KNOW the language will be there with a community in 10 years and that it has a history of evolving without screwing over the community.

I don't think this is true at all. Where was Rails 10 years ago? It was pretty bad compared to today's Rails. If the Rails 2 and Rails 3 rewrites never happened then RoR likely would've been superseded by something else and be "dead" today. The point is that Stripe, Github, etc were all early adopters of Ruby and accepted that risk

> You need a talent pool of thousands

I also don't think this is true. You need to hire the right people and you need for them to stick around. And you need to be in the right line of business obviously. Again most of the companies you listed were small/passionate/scrappy for a long time