Often times, a client will bring to me a great idea and ask for an estimation. The problem is, for me to make a good estimation, I need to imagine the product from the back: at the last day of delivery, looking back to the project start, what happened? I need to also be able to see the product on that day.

Lately I've been having thoughts about polymorphism. Let's get this straight, I'm not talking about the Object Oriented principle in Programming. I'm talking about good old-fashioned Biology 1A - Polymorphism. It's been decades since we've studied it, so here's a summary:

Sometimes a gene mutates and you see two different variants in the same population. The classic example is the peppered moth.