This kind of willful, unilateral agreement is not unique to famous scientists—most of the unfamous scientists would agree, too. You’re not really a scientist if you don’t. The core components of science—say, the structure of DNA or the speed of light or the weight of carbon—have to be uniform. This is a card game that can be played with only one specific deck, and that should increase our confidence in what we believe to be true. If everyone is using the same information to do different things and still coming to the same reliable conclusions, there isn’t much room for profound wrongness.