Maybe the reason we can’t do anything about the existential crisis of climate change — or, indeed, any of the other existential crises we’re facing at present — is that 80 percent of humanity has what’s known as an “optimism bias.” (If you’re reading this, I’m willing to bet you’re among the “lucky” 20 percent whose perceptions of reality are demonstrably realistic.)

80 percent of humans are delusionally optimistic, says science | Grist. You’re willing to make that bet because they read Grist? Talk about delusional optimism.