Always when you go to a new country and they teach you bad words, you just say them without knowing the value and people look at you because you didn't know that value of them.
There comes a time when every scientist, even God, has to write off an experiment.
When you're trying to solve a problem on a new product type, you become completely focused on problems that seem a number of steps removed from the main product. That problem solving can appear a little abstract, and it is easy to lose sight of the product.

