My new idea is that the chart aligns with pivots that exist where one group of similar angles turn opposite of the next group of similar angles.
Sometimes angle groups merely turn, say, -45 degrees to 0 degrees, instead of a cleaner 90 degrees, in which case they likely are acting in accordance with a stronger pivot elsewhere. 
2 ran out of room; it's just an l.p. 4
3 only the lowest TL with the two boxes --
4 fib time series shows compromise of level at 0 and at 2 with 3:
(4: result) 
5
Sometimes angle groups merely turn, say, -45 degrees to 0 degrees, instead of a cleaner 90 degrees, in which case they likely are acting in accordance with a stronger pivot elsewhere.
- There may be a simple case of this, where everything aligns with a couple of such pivots.
- Or, there may be lots of the stronger pivots, and then repeated shapes may work in conjunction with them.
- Or, a balanced shape
- or a compromise between two areas of price may take over, where balance around is, respectively, either well over 90 degrees or well under 45 degrees between angle-group pivots.
- Sometimes, a series of angles develops into a pivot.
charts for this list --
1
2 ran out of room; it's just an l.p. 4
3 only the lowest TL with the two boxes --
4 fib time series shows compromise of level at 0 and at 2 with 3:
(4: result)
5