some stuff

You know there's no turning back when you're willing to treat the horse like a sphere to make the math easy. It didn't make sense when we started out, but I've become a boundary-seeker, looking to solve things with minimal effort in the shortest amount of time possible. I consider it a success to almost finish a problem on an exam and am happy with estimates - within an order of magnitude of course - if numbers are called for.

I remember taking derivatives the hard way and the confusion that ensued when we included multiple dimensions. Now I can live in the coordinate system of my choice and perform a dazzling Galilean or Lorentz transform upon request. If you really want to know, I can tell you just how much that top wobbles when you spin it or the speed of the racecar from the moon's point of view.

I remember when E only stood for energy and k was always the coulomb constant. Now E can be a field, and k can be anything I want. But I hardly ever make it the Coulomb constant because we can probably cancel pi and epsilon at some point anyway.

I know that it is never acceptable to divide by zero because everything will blow up. I've never actually experienced this, but I've learned enough to refrain from trying.

I know that there is uncertainty in all things quantum, but in life I've found it's never as simple as h-bar over 2. I am certain that I know more than this and still don't know much, much more, but that's for another time.