Spot on analogy SilverStrata! The Comet was indeed quite revolutionary for it's time, but as history shows, it was one step too much.
Here's an interesting quote from Donald Rumsfeld:
There are known knowns; there are things we know that we know.
There are known unknowns; that is to say, there are things that we now know we don't know.
But there are also unknown unknowns – there are things we do not know we don't know.
I assume that the 787 is (self)certified using known knowns as certification rules, but then I'm curious what and how many unknown unknowns regarding plastic electric jets are out there, waiting to either be discovered or found out the hard way...
