World Wars 1 & 2 happened, shattering the remaining sense of aesthetic unity we had that was followed by modernism which purity spiraled into the ubiquitous glass box, which was then followed by a post-modernist surface-level, purely negative rejection of modernism the post-modernists were unable to return to any pre-modern sense of aesthetics due to their ideological commitment to the ur modernist impulse of pride (…
To latch on to this great post there are a couple of other worthwhile discussion points: We're still in a nuclear war mental model. We can't build beautiful things if we think they'll be destroyed in a war. We still have a societal level PTSD from World War I, World War II, Korea, Vietnam, the Soviet Union, and other things. World War I veterans came back with horrific problems. That's why architects like Frank Lloyd…
But don't we need that passion (and hope) before we can become a space faring civilization? We kind of had that space-faring passion back in the 60s when the US/NASA did the Apollo program - at that point the general feeling was that the government was capable of doing good things. That general feeling has been gone for a while now and has been replaced with a general distrust of institutions like government. To some extent it seems like you need some level of hope before you can trust.