Ask HN: Best lang / framework to build something fast but scales too

I keep getting ideas that can solve my own problems, if converted into products / services and shown to the markets. The markets would shape them to survive or die fast.

I want to develop a website in roughly 7 days or less that can scale to million page views per month without change. I would host it on a AWS Micro. The site would have log-ins and shared message postings.

Please suggest the best suited language as well as framework to achieve this.