All true. I do think there is a window to succeed in the U.S. In Europe it's just much harder to innovate more generally.
Also the SAFs are looking pretty good. Point is, I don't think we should decide that planes are bad of all sudden, that doesn't seem like a very wise thing to do given the massive benefits of air travel. Rail is also great but rail shines for cargo and large volume traffic between urban cores
One of the fields that isn't true is civilian aerospace. Innovation cycles are long, regardless of country, regulations are more or less the same. Nobody only certifies according to EASA or FAA, everyone does both. And with Airbus and Boeing forming a duopoloy on civilian aircraft, both sides have equal interest, and funding, for innovation.
Throw in all the current eVtol start-ups and I don't see that much difference between the US and Europe.
Also the SAFs are looking pretty good. Point is, I don't think we should decide that planes are bad of all sudden, that doesn't seem like a very wise thing to do given the massive benefits of air travel. Rail is also great but rail shines for cargo and large volume traffic between urban cores