Earlier quoted context omitted.
> The 737 Max is doomed without the MCAS, the entire reason it exists is to keep the same type rating the same to keep pilots from needing to re-certify. That's what Boeing wanted, but that doesn't mean they should get it. Anyway, I think "doomed" is overstating it. I would assume whatever training an existing 737 pilot would need to fly and MCAS-less MAX would be far less that what they would need to fly an Airbus.
The MAX can't be certified for civil air transport without MCAS. That's the rub. If Boeing could have built and certified the plane without it, they would have.
Everyone else has stated that the reason for MCAS is so that MAX could be certified as a previous generation of 737 and therefore not require training for an established 737 pilot to fly.