Actually, it's not a dumb idea - as an example, measuring stress statistically airport by airport during landing might tell operators - and safety officials - which approaches and procedures are problematic and might need revising.
The ugly part as usual is the privacy invasion, recordings will get made that never get wiped, and in the end what should be a statistical quality control tool will get turned into big brother. But then, if your phone and your car are snitches, why not your plane?
Edmund
Last edited by edmundronald; 4th Feb 2019 at 06:15.