MeaningofLife.tv Survivorship Bias in Startups During World War 2, the allied military wanted to add some more protective armour to their planes. However, they could only add a limited amount of armour to each plane before they became too heavy to fly. This meant that they had to choose specific parts of the plane to attach armour (and leave un-armoured) to optimise the number of planes returning home. Collecting data They began by gathering data and analysing the locations of the bullet holes on all the planes in their fleet. Their initial idea was to attach armour to the places which had been, on average across the whole fleet, the most peppered by bullets. They found that there were more bullets holes per square foot in the wings and the fuselage than in the engine and fuel system. Not what Abraham Wald thought… However, a mathematician named Abraham Wald, quoted by many as being the cleverest man in any room, saw the situation differently. Why? Well, all of the planes that they were analysing had come home safely. Feature Creep
OpenCourseWare | Physics | 8.02 Electricity and Magnetism, Spring 2002 | Video Lectures How Mindfulness Makes Us Happier & Better Able to Meet Life's Challenges: Two Animated Primers Explain The West has very rich contemplative tradition. Monastics of the early Christian church practiced forms of meditation that have been adopted by many people seeking a deeper, more serene experience of life. Given the wealth of contemplative literature and practice in European history, why have so many Western people turned to the East, and toward Buddhist contemplative forms in particular? The answer is complicated and involves many strains of philosophical and countercultural history. Some of the greatest influence in the U.S. has come from Tibetan monks like the Dalai Lama and Chögyam Trungpa Rinpoche, onetime teacher of Allen Ginsberg, and founder of Naropa University and the ecumenical Shambhala school of Buddhism. Trungpa Rinpoche contrasted theistic forms of meditation, both Hindu and Christian, with the mindfulness and concentration practices of Buddhism, writing that the first one, focused on a "higher being" or beings, is “inward or introverted" and dualistic. How do we do that?
The Elegant Universe | Watch the Program The Elegant Universe: Part 3 PBS Airdate: November 4, 2003 NARRATOR: Now, on NOVA, take a thrill ride into a world stranger than science fiction, where you play the game by breaking some rules, where a new view of the universe pushes you beyond the limits of your wildest imagination. This is the world of "string theory," a way of describing every force and all matter from an atom to earth, to the end of the galaxies—from the birth of time to its final tick, in a single theory, a "Theory of Everything." Our guide to this brave new world is Brian Greene, the bestselling author and physicist. BRIAN GREENE (Columbia University): And no matter how many times I come here, I never seem to get used to it. NARRATOR: Can he help us solve the greatest puzzle of modern physics—that our understanding of the universe is based on two sets of laws that don't agree? NARRATOR: Resolving that contradiction eluded even Einstein, who made it his final quest. S. BRIAN GREENE:The atmosphere was electric. S. S.
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