If you heard that squeal just now, I came around the corner to explain to him, I went to smash an ant on the wall, it fell, I didn’t see where it went but I felt it land on my foot and suddenly found myself kicking real hard and jumping back and, yeah, it got noisy there for a second.

His face! He was still back at the wait wait wait WHAT?! He exclaimed, You can’t. Feel. An ANT! Land on your FOOT!

I laughed because I had–and I knew exactly where he was coming from. What the nerves no longer transmit, you gradually forget they used to be able to do. I studied harmonics in a physics of acoustics class in college so I know what they are in theory and they must sound divine, the pure math of sound and all that (anyone else remember the Harmonic Convergence group in the news? Was that related to the start of Burning Man? I digress.) But asking me to report on hearing them in our experiments in the lab? It was already ten years too late for that.

That is the one specific class grade I remember from university.  A-. Never was quite sure about that one.