“Through an accumulation of gradual improvements to our tools, both mental and physical, we have spread across the planet into regions ill-suited for our slowly evolving bodies, and where we have settled, we have survived and thrived. Along the way, what used to be the right way of doing things routinely became the wrong way. Social change gave us the ability to recognize that and rapidly adapt as individuals. With that adaptation, we gained culture and the ability to change our collective minds in a rapid, society-wide cascade when we realized our norms were harmful, misguided, dangerous, or incorrect. Changing our minds became our greatest strength as a species.” — How Minds Change: The Surprising Science of Belief, Opinion, and Persuasion by David McRaney