Twitter: From Ruby on Rails to the JVM [video]
I was recently in a quandary over the choice of technology. I started RoR and I really like it. However I was concerned about long term implications of that choice. The thing that I am taking from this talk is that I shouldn't worry about that, right now. If and when I need to scale, I will have enough resources to make a better choice. Resources that I don't have right now.