Ni is going from a to d while skipping the b and c. You just *know* the answer. It's also jumping from a to d when there *are* no b and c. For me, it feels like a huge cathedral, organized and ever-expanding. I know the way. I know how a car stereo works, and I know how I should stabilize option pricing, and I know how they are ultimately similar. There are big connections going from one end to the next, nothing is distant. It is my home. It is where I live. Sometimes, I show some of the goodies to the rest of the world. Usually, I don't.