I remember hearing this 20 years ago, and we've certainly hit at least one tipping point since then, no? I'm not saying you're wrong, but when someone predicts

I remember hearing this 20 years ago, and we've certainly hit at least one tipping point since then, no? I'm not saying you're wrong, but when someone predicts a calamity for decades, they don't get credit when they happen to be right the 500th time.