I asked a question earlier but it was one of several and did not get answered with the others.
The glass indicates when the ASI is unreliable and the autopilot disengages as its inputs don't agree.
Is there anything that sounds etc to say that the ASI has become reliable again? Would it be possible for pilots, perceiving the ASIs to be intitially wrong to continue to do so to the exclusion of paying attention to attitude?
Just how tight is coffin corner at FL 380?