Comment by dzink

Society or a company of people operates like an organism at scale - it can get sick with the slightest imbalance of resources, so its collective experience builds antibodies to protect itself. If this was an idea for a portable gadget, it would probably be welcomed, but the underground tunnels and the risks that come with them (collapses, maintenance, infrastructure shifts, ecological impact) are scaring people. California's central valley and a lot of building foundations have been moving up and down with the drought and rains of late. Now imagine that happening with a mesh of concrete tunnels carrying people underneath.

That said, to assume feedback against one project is a testament to lack of entrepreneurial spirit, rings about as true as claiming people who don't like Justin Bieber are deaf.