I tweaked the parabolas to accommodate the latest price action and added the radial lines a, b, c, and d. I did “cheat” (with some reasonable(?) TA rationale) on lines a and c, and I note that lows and highs occurring early or late in a day would affect the slope of these four long(!) lines.
The results are scary. Line d suggests that a flash crash could happen over the next few days -- even today. I don’t believe this will happen, but in the spirit of TA Ideas, I publish this to show why it could happen.
This is not trading advice.
And yes, I know, I'm using very unconventional TA, but hey ...