TD, so 'until we know we’re capable of doing that' is much more influenced by the financial situation, opposed to existing or new engineering capability which can develop alongside the new technologies.
But then money = people (engineers); a delicate balance of investing for the future in people, technology, or something else.
What will commercial aviation look like over those time scales.
Public statements to the investors; stay with us for the long term … … hmm.
How big is the credibility gap; not that large when viewed together with the military perspective.