I'm amazed to see such a big fleet grounded for such a long time. Since MCAS was employed to avoid retraining of pilots, I'd assume that at this point retrainin

I'm amazed to see such a big fleet grounded for such a long time. Since MCAS was employed to avoid retraining of pilots, I'd assume that at this point retraining the pilots out of their pockets would be cheaper for Boeing than paying airlines' damages for grounded planes. Is that training of no use because disabling MCAS would also need re-certification? Is the process of getting certification for a MCAS-free version roughly the same as getting the fixed version certified? Speculating way out my depth now: maybe it would still be worth it to pursue parallel certification to have the option of retraining when MCAS should be deemed uncertifiable.