Wow, thanks for the effort put into answering a passing curiosity! Of course any change to the aircraft has many other downstream implications (ability to sour

Wow, thanks for the effort put into answering a passing curiosity! Of course any change to the aircraft has many other downstream implications (ability to source parts for repairs, lifetime of the part, maintenance requirements), but it's cool to think that for an "all else the same" replacement that the bar is still so high. With the falling costs of advanced materials I do wonder if next gen aircraft will be substantially different.