[benj111]

I don't think "make it work" necessarily implies starting with the wrong language.

It's sort of like "premature optimisation is the root of all evil". That shouldn't imply you should use completely the wrong language and data type.

You need to think about where you are going. Just that you shouldn't be focussing on micro problems when you haven't finished the big picture as it were.

To my mind we should be talking about problems as fractals. Get the broad shape right, and then start zooming into the details. That doesn't mean you should start off with the wrong shape.