Progress

Are These Dots Purple or Blue? Your Answer Might Not Be As Reliable As You Think

When blue dots or threatening faces become rare, people’s concepts of “blue” or “threat” expand.

Science

What Are the Most Important Moral Problems of Our Time?

Will MacAskill is a co-founder of the effective altruism movement, a philosophy that tries to answer the question: How can we do as much good as possible?

TED

The Rise and Fall of Cognitive Control

Reasoning, problem-solving, symbolic language, planning — these faculties are fundamental to virtually all of our individual and societal accomplishments.

Behavioral Scientist

Optimism Is the Engine That Moves Society Forward

Skepticism has a place, but it's optimists who decide the future, says Kevin Kelly.

Big Think