The gap between wishful thinking and reality is vast, but in a democratic society no contest of ideas and proposals can proceed in rational ways without all sides sharing at least a modicum of relevant information about the real world, rather than trotting out their biases and advancing claims disconnected from physical possibilities.

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Attribution

Quote text and notes from Wikiquote: Vaclav Smil (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.