Not an expert, so posing a few questions in response to the article: - Barring market microstructure considerations altogether, aren't there human-engineered f

Not an expert, so posing a few questions in response to the article: - Barring market microstructure considerations altogether, aren't there human-engineered failsafes in place to prevent market selloffs? Most recent and salient example that comes to my mind: circuit breakers during the multiple day sell-off on news that COVID was indeed serious. - Additionally, weren't most fears re. algorithmic trading in the US equity space addressed in the early 2010s? - We saw Zillow (using Facebook's Prophet), Redfin, and Opendoor apply algorithmic trading to homes. Did they really have an outsized effect on housing liquidity? A superficial look at the numbers tells me that on paper, wealth was redistributed from their pockets.