 He has further gone on to ascribe "truthiness" to other institutions including Wikipedia, which he believes upholds his view that reality can be determined by consensus opinion, and often encourages viewers to use Wikipedia to "change reality".Colbert believes that if a majority of people want something to be true, that thing therefore must become the truth.For instance, after months of scoffing at global warming, Colbert suddenly reversed his position, conceding its existence only due to the box office success of "An Inconvenient Truth", a sign that "the free market has spoken".