“I think I’ve broken them with logic and good engineering behind me. Carbon fiber and titanium? There’s a rule you don’t do that,” Rush said in a 2021 interview with Mexican YouTuber Alan Estrada. “Well, I did.”

An expert previously told Insider that photos of the Titan sub wreckage suggest that the most likely explanation for the vessel’s implosion was that the carbon-fiber hull collapsed under the immense pressure of the ocean.