And the modern tipping points for both kinds were the result of the same two momentous changes. The first was that profound shift in thinking that swelled up in the 1960s, whereby Americans ever since have had a new rule set in their mental operating systems, even if they’re certain they possess the real truth: Do your own thing, find your own reality, it’s all relative. The paradigm can be explicit or implicit, conscious or unconscious, but it’s the way we are now. The second big enabling change was the new era of information and communications.