Just wanted to add that most modern believers in 'natural rights' that I've met, i.e libertarians and market anarchists, don't recognise intellectual property a

Just wanted to add that most modern believers in 'natural rights' that I've met, i.e libertarians and market anarchists, don't recognise intellectual property as real property. See for instance http://mises.org/journals/jls/15_2/15_2_1.pdf http://mises.org/journals/jls/15_2/15_2_1.pdf, a libertarian patent attorney writing on IP law.