All Videos — April 13, 2011

An Experiment That Disproves Free Will?

A weekly newsletter featuring the biggest ideas from the smartest people

Neuroscientist Benjamin Libet conducted experiments in the 1980s which suggest that our behaviors are determined by our brain and only later interpreted by our mind.

A weekly newsletter featuring the biggest ideas from the smartest people

A person sits on a sidewalk near an escalator entrance, next to an overturned shopping cart on a metal grate.

The Present

Can science solve the poverty problem?

An evidence-based policy movement is arming the fight with tools and programs that are more effective than ever before.

The letters "AI" appear with a glitch effect in multicolored pixels against a black background.

The Present

AI skeptic Gary Marcus on AI’s moral and technical shortcomings

The cognitive scientist argues the current AI environment is failing us as consumers and a society. But it’s not too late to change course.

Starts With A Bang

Ask Ethan: Do gravitons need to exist?

Electromagnetism, both nuclear forces, and even the Higgs force are mediated by known bosons. What about gravity? Does it require gravitons?

Starts With A Bang

The 16 stories that shaped physics and astronomy in 2024

There was a lot of hype and a lot of nonsense, but also some profoundly major advances. Here are the biggest ones you may have missed.

Person disguised as a ghost with sunglasses, sitting at an outdoor table.

Neuropsych

Why we ghost

The psychology of people who cut off all communication—and how that affects their partners.

Up Next

All Videos

Evolution Created Free Will

For billions of years on this planet, there was life but no free will. The difference is not in physics—which has remained the same—but is ultimately in biology, specifically evolutionary […]