Pick the right tool for the team and the job that you are going to do.
Founder of Neo, Pivotal Labs, Agile & Lean
There is not a correct language or a correct tool to use.
Teams need to rigor to self-analyze: “Is this the right tool for the job or the new hotness?”
You never know what the problem is that you are going to solve at the beginning of a startup.
There is more that you do not know than you do know at any point in a startup.