Wow. Lots of confusion.

Amclaussen responded to an inaccurate and misinformed 9 year old post with a rambling cacophony of incoherent comments that mix the 737 Max with the MD-11 (it's an MD-11 thread). It went downhill from there.

Boeing didn't build the MD11, and it doesn't have MCAS.

That said, as others have delved into the 737 Max...MCAS was a certification alternate means of compliance.