Shame these guys didn`t monitor their speed a little better...MCAS was the result. And `rushed` in perhaps? The law of unintended consequences. Bit like the locking of flight deck door...
https://www.gov.uk/aaib-reports/aar-...september-2007
As I understand it, some at Boeing couldn`t understand how, with 82 knots seen during the recovery, the aeroplane didn`t crash. It was literally hanging on the engines at full power.