This is a very bad summary. There are enough planes with a single air speed indicator, who don't drive into the ground at takeoff. The explanation of MCAS is al

This is a very bad summary. There are enough planes with a single air speed indicator, who don't drive into the ground at takeoff. The explanation of MCAS is also nonsense, MCAS isn't stall protection, that is just something the commenter has made up. MCAS exists so that the plane tries to mimic the behavior of previous airplanes of the same type. I don't think the commenter really has any idea what is going on. I recommend the book "Flying Blind" which goes over the history of Boeing and gives more details on why the crash happens.