We did send multiple car sized rovors to mars on a pretty decent budget. And have reusable rockets. So, not sure if we "can't build cool things" anymore. More s

We did send multiple car sized rovors to mars on a pretty decent budget. And have reusable rockets. So, not sure if we "can't build cool things" anymore. More so that were not at risk of global war is a driving factor for not having to innovate military much.