For an example of this, look at the sibling comment by pak (made after yours) =)
I'm not trying to be a stickler. Granted, I work mostly in science research, where broad claims are discouraged and quantifying confidence in a hypothesis is expected. Extraordinary claims require extraordinary evidence.
At best, I think this rule could apply to (maybe) 80% of "huge" tech companies. 80% is a disingenuously long distance from "all companies".