Opção Racional is a group that investigates any paranormal claims and everything that is not explained by the science today. Our point of view is that we do not accept as true theories and explanations for which there is insufficient evidence. We stimulate inquiry for truth.
Our Home-Page is in portuguese. If you understand only english and are interested in information about paranormal claims and pseudo-science, please go to "CSiCOP" or learn portuguese and stay here.