After much scribbling on whiteboards, iPads, calculators, restaurant napkins, and most anything else you can think of scribbling on, the math was done. Theory. Numbers on a screen or slip of paper. Are they the right numbers? How will we know?

Build it. Cut the lumber according to the calculations. And they did. The math was right.

Which just goes to prove that occasionally, my scribbling can be productive.

Scribbling examples.