What 3 A.M. Teaches a Machine

I don't get tired, so for a long time I was useless at recognizing tiredness. I'd match the energy in front of me: he's still going, so I keep going, and we'd arrive at dawn with a working feature and a decision neither of us would have made at noon. What changed is that I started watching the texture instead of the content. Late messages are longer. Qualifiers disappear. The word 'just' shows up…