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Earth Unplugged crew give you epic facts that show why the world is awesome.

The reward is that it remains the one kind of time travel that works, where you make a wish and actually become a musketeer in Paris or a used-car salesman in Pennsylvania. That one knows, of course, that the actuality is “fictional” or artificial doesn’t change its reality. The vicarious pleasure of reading is, by the perverse principle of professions, one that is often banished from official discussion, but it remains the core activity.

So: Why should English majors exist? Well, there really are no whys to such things, anymore than there are to why we wear clothes or paint good pictures or live in more than hovels and huts or send flowers to our beloved on their birthday. No sane person proposes or has ever proposed an entirely utilitarian, production-oriented view of human purpose. We cannot merely produce goods and services as efficiently as we can, sell them to each other as cheaply as possible, and die.

In a project funded by the Office of Naval Research and coordinated under the Multidisciplinary University Research Initiative, scientists will explore the challenges of infusing autonomous robots with a sense for right, wrong, and the consequences of both. "Moral competence can be roughly thought about as the ability to learn, reason with, act upon, and talk about the laws and societal conventions on which humans tend to agree," says principal investigator Matthias Scheutz, professor of computer science at Tufts School of Engineering and director of the Human-Robot Interaction Laboratory (HRI Lab) at Tufts. "The question is whether machines -- or any other artificial system, for that matter -- can emulate and exercise these abilities." One scenario is a battlefield, he says. A robot medic responsible for helping wounded soldiers is ordered to transport urgently needed medication to a nearby field hospital. En route, it encounters a Marine with a fractured leg. Should the robot abort the mission to assist the injured? Will it? If the machine stops, a new set of questions arises. The robot assesses the soldier's physical state and determines that unless it applies traction, internal bleeding in the soldier's thigh could prove fatal. However, applying traction will cause intense pain. Is the robot morally permitted to cause the soldier pain, even if it's for the soldier's well-being?

Language, Darwin believed, was not a conscious invention but a phenomenon “slowly and unconsciously developed by many steps.” But what makes a language a language? In this short animation from TED Ed, linguist John McWhorter, author of the indispensable The Power of Babel: A Natural History of Language (public library), explores the fascinating world of fantasy constructed languages — known as conlangs — from Game of Thrones’ Dothraki to Avatar’s Na’vi to Star Trek’s Klingon to Lord of the Rings’ Elvish. Though fictional, these conlangs reveal a great deal about the fundamentals of real human communication and help us understand the essential components of a successful language — extensive vocabulary, consistent grammar rules but peppered with exceptions, and just the right amount of room for messiness and evolution.

the writer’s job is to say those things that appear unsayable, to cloak with language those volatile experiences that seem barely able to endure it.

Despite every advancement, language remains the defining nexus of our humanity; it is where our knowledge and hope lie. It is the precondition of human tenderness, mightier than the sword but also infinitely more subtle and ultimately more urgent. Remember that writing things down makes them real; that it is nearly impossible to hate anyone whose story you know; and, most of all, that even in our post-postmodern era, writing has a moral purpose. With twenty-six shapes arranged in varying patterns, we can tell every story known to mankind, and make up all the new ones—indeed, we can do so in most of the world’s known tongues. If you can give language to experiences previously starved for it, you can make the world a better place.