Truth or Consequences
Truth: actual objective fact that exists independent of popular opinion. eg; the sky is blue, dinosaurs are extinct, the internet is full of idiots.

Consensus: what most members of a given group seem to agree on. eg; Elijah Wood is gay, carbs are evil, The Princess Diaries II was worth paying ten bucks to see.

Those who confuse the two, or try to argue the former from the latter, will be declared idiots both in truth and by consensus.