Once, in a sporadically rational past, evidence mattered. It might be hidden - for a while, or forever, (how would we know?). It might be falsified, slanted, contentious, or so obviously convincing there could be no further argument. But nonetheless, and by fairly widespread consensus, the facts usually mattered.
It would be hard, I think, to make that case now. What we think, these days, no longer needs a backing of evidence. Opinions are everything, and the facts, where they conflict with our preferred point of view, may be ignored at no cost to our credibility or reputation.
