Can we live in tunnels, caves, underground rivers, subways, sewers, with solar panels, water filters, peer to peer bit torrent internet, bit torrent cell phones, with underground highways, with cryptocurrencies, inside houses that are made more for long-term consumption and growth and development and more via 3D printers, or what? Personally, I think a lot is happening regards to technology, architecture, science, in what we can do, in what we are doing each day. If you can help people plant gardens, build better houses, buy water filters, solar panels, free wifi systems, and so on, go do that.