Love the analogy. As a robotics (software) engineer I've long struggled to explain to software engineers why certain things are extremely hard.

I think I'll use your analogy next time, "and then robotics is like gardening. You don't know when the weather will change what wild life will come and try to ruin it, or the soil composition. At least in the house, you can be certain everything is made by human for humans, and things make sense. Outside, not so much. "