An Ignorance
The condition of being uninformed or uneducated. Lack of knowledge or information.Synonyms: blindness, cluelessness, knowledgelessness, unawareness, unknowingness, unknowledge
LOGICS
Appeal to ignorance (Argumentum ad ignorantiam)
This fallacy consists in assuming that the lack of evidence for a position is enough to demonstrate its falsity and, inversely, the lack of evidence for its falsity is enough to entail its truth. This is a very simple fallacy, for we cannot assert the truth of a proposition based on the lack of proof of its falsity, and vice versa. Lack of evidence is a flaw in our knowledge, and not a property of the claim itself. For instance, to say extraterrestrials exist because there is no proof of their non-existence would be to neglect the fact there may be no independent positive evidence for their existence either. The rational attitude to have when we have no evidence for either position is to suspend judgement on the matter.