My understanding is that a plane can have non-monotonically increasing backpressure without being aerodynamically unstable, and the difference between the two i

My understanding is that a plane can have non-monotonically increasing backpressure without being aerodynamically unstable, and the difference between the two is all about what the plane does when the stick is released. I don't believe the MAX will ever "stall itself" even with MCAS disabled, as previous planes with aerodynamic instability would if you disable that correction. It requires the pilot to fly into the stall, which is easier than it ought to be due to the placement of the engines relative to the center of gravity.