JOURNAL · 12 AUG 2026
Mark the slope before you mention the cross
A crossover is only the meeting of two lines. On the August practice sheets the longer average was often still flat when the lines met.
On the fourth evening of the desk, Niran draws a short right triangle under a segment of a simple average. The run along the time side is fixed — the same number of sessions on every sheet that night — and the rise is read off the price side in the units already printed. Rising, flat, or falling is a property of that triangle. It does not wait for a second line.
A crossover needs two lines, and it is an easy place to rest the eye. In the August open-desk pile, several students had circled a meeting of the 20-period and 50-period averages and stopped writing. When the triangle was added, the longer average on those sheets was still flat. The short line had arrived at a meeting. The long line had not yet taken a slope you could defend.
The house rule is verbal as well as graphic. On evening 8 you may describe the cross only after you have said the slope of each line. People who skip the order tend to turn the meeting into an instruction. The room does not issue instructions, so the sentence has to stay descriptive: the lines met, the longer one was flat, the shorter one was rising over the fixed run.
If you practise this on your own, pick the run before you pick the drama. Ten sessions is what we use on the teaching sheets because it fits the margin. A different sheet can use a different run, as long as you write it down and keep it still while you compare segments. Changing the run mid-page makes every triangle a new ruler.
The mild annoyance, according to the Wednesday regulars, is how slow it feels. A cross is one mark. A slope is a little arithmetic and a word you have to choose. That slowness is the point of the pencil. The average will still be on the page in the morning.