MIT Expert Highlights 'Divergent Condition' Caused by 737 Max Engine Placement
forbes.com
forbes.com
But Hansman's comment seems (very surprisingly) inaccurate, because my understanding is that the MAX is not actually aerodynamically unstable: the lift from the nacelles results in a non-monotonic backpressure on the yoke as AoA increases, and that violates airworthiness regulations on yoke handling. But the plane isn't going to fly itself into a stall. The pilot has to do that by pulling back on the yoke at high AoA (and with less backpressure than a 737 pilot would expect).
That's not an unstable plane, in the sense that the B-2 bomber is unstable. It's just a plane that handles differently to pilots who originally trained on different but related planes.