Like most of what i say, this is self-serving.
Among the lesser-discussed co-benefits of walking and bicycling is that it makes people happier and improves brain function. That is and always will be good and true, but feels like it should be recognized as an urgent need right now.
110% willing to acknowledge my own multiple biases here, though.
But all our unprecedented problems and lack of solutions just seem explained pretty easily be everyone being very justifiably depressed.