[mixmastamyk]

> This boggles the mind. I am using typed languages since I can think.

And therein lies the problem. It's a tradeoff: prototyping speed/readability vs longterm reliability. Modern languages have greatly improved the tradeoff, but it still exists, whether purists believe it or not.

I personally find the highest productivity in adding the majority of tests and typing later, after a design solidifies, not before.