Our ideas of what might be sold at a cost that allows for profit to its investors, rather than just payment for the technicians that discover and refine it from sources, has been deeply influenced by water. Consider this blog post (full post linked here) which posits that some people already pay to breathe air, … More You can’t breathe? Let me sell you some ‘air’. You have no money. That means you have no ‘demand’ for our air supply effectively. Can I sell your relatives a funeral?