Couldn't this interpretation be used to prevent people from doing ANYTHING themselves? From the very brief skim of the wiki article, it looks like part of the justification of the Court's interpretation is because the growing of "excess" wheat made it so he didn't have to buy wheat from other farmers and thus affected interstate commerce; therefore, his action of growing extra wheat on his private property, despite not selling it or even giving it to anyone else, can be regulated by the government.