I asked Ryan (the resident genius here in Chez Wheaton, where our motto is "Mathus is Hardus") what the formula was to find circumference of a circle if you know its diameter.
"It's C = π⋅D" he said.
"Thanks," I said, "I can't believe I forgot that."
I got my calculator and put in 186000000 * 3.14
"Why didn't you remember that formula?" He said.
"Because that part of my brain doesn't get used as frequently as it once did, and even when it did get used, I had a . . . difficult . . . relationship with it."
584,040,00 came up on my display.
"Why did you want to know what it was?" He said.
"I just had this idea, and I wanted to know something . . ."
I typed in 58404000 * 34 and got back 19,857,360,000.
I looked up at him, unable to contain the huge smile that spread across my face.
"I've been riding this planet for almost twenty billion miles." I said.
"Woah." He said. "That's cool."
"Yeah," I said. "It really is."