There are important differences in the nature of the declines. The current series looks like a bear market in the form of 1973-4 whereas 1929-32 was much more precipitous. This may be attributed to the extraordinary actions of the FED and Treasury. However, this may only soften the blow and not the outcome, most likely adjusted for inflation.
The Intraday Volatility matches up nicely so far as we have aligned them Peak to Peak without regard to pricing. It will be in the market action going forward where the model will be assessed here.
“A nation can survive its fools, and even the ambitious. But it cannot survive treason from within. For the traitor appears not a traitor; he wears their face and their arguments, he appeals to the baseness that lies deep in the hearts of all men. He rots the soul of a nation, he works secretly and unknown in the night to undermine the pillars of the city, he infects the body politic so that it can no longer resist. A murderer is less to fear. The traitor is the plague.” Marcus Tullius Cicero