In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers. (Introducing the series "Questions no one knows the answers to")

The simulation hypothesis proposes that all of our existence is a simulated reality, such as a computer simulation. The simulation hypothesis bears a close resemblance to various other skeptical scenarios from throughout the history of philosophy. The hyp...

Stoicism is a school of Hellenistic philosophy founded by Zeno of Citium in Athens in the early 3rd century BCE.

Epictetus was a Greek Stoic philosopher. He was born into slavery at Hierapolis (50AD - 135AD), Phrygia and lived in Rome until his banishment, when he went to Nicopolis in northwestern Greece for the rest of his life. His teachings were written down and...

Plato’s Allegory of the Cave explained with a summary, analysis, and what writers today can take away from it.

The Infinite Hotel, a thought experiment created by German mathematician David Hilbert, is a hotel with an infinite number of rooms. Easy to comprehend, right? Wrong. What if it's completely booked but one person wants to check in? What about 40? Or an i...

Twenty four hundred years ago, Plato, one of history’s most famous thinkers, said life is like being chained up in a cave forced to watch shadows flitting across a stone wall. Beyond sounding quite morbid, what exactly did he mean? Alex Gendler unravels P...

Death is inevitable for all known living things. However on the question of what, if anything, comes after life, the most honest answer is that no one knows.

Is reality real? These neuroscientists don’t think so, with Richard Dawkins, Heather Heying, Donald Hoffman & more

Peak performance mind hack explained in 7 minutes.

Paulo Coelho discusses his thoughts on Luck, Coincidence, and Faith.

Alan Watts opens up about Jesus and the true religion.

In this talk Vishen Lakhiani, author of "The Code of the Extraordinary Mind" and founder of Mindvalley shares his model for understanding how human beings expand their levels of consciousness and brings into place ideas from the leading teachers at Mindva...

Alan Watts On Intelligence. An inspiring and profound speech by Alan Watts on intelligence and self awareness. Original Audio sourced from: Alan Watts “The Nature of Consciousness, and the Myths of Western Civilization”

An inspirational and profound speech from the late philosopher Alan Watts. Original Audio sourced from: “Alan Watts - 'Nature of Consciousness' from Human Consciousness”