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  2. List of global issues - Wikipedia

    en.wikipedia.org/wiki/List_of_global_issues

    This list of global issues presents problems or phenomena affecting people around the world, including but not limited to widespread social issues, economic issues, and environmental issues. Organizations that maintain or have published an official list of global issues include the United Nations, and the World Economic Forum.

  3. Mamihlapinatapai - Wikipedia

    en.wikipedia.org/wiki/Mamihlapinatapai

    The word mamihlapinatapai is derived from the Yaghan language of Tierra del Fuego, listed in The Guinness Book of World Records as the "most succinct word", and is considered one of the hardest words to translate. It has been translated as "a look that without words is shared by two people who want to initiate something, but that neither will ...

  4. Wicked problem - Wikipedia

    en.wikipedia.org/wiki/Wicked_problem

    Another definition is "a problem whose social complexity means that it has no determinable stopping point". [2] Moreover, because of complex interdependencies, the effort to solve one aspect of a wicked problem may reveal or create other problems. Due to their complexity, wicked problems are often characterized by organized irresponsibility.

  5. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    Here’s another problem that’s very easy to write, but hard to solve. All you need to recall is the definition of rational numbers. Rational numbers can be written in the form p/q, where p and ...

  6. If You Find This World Bad, You Should See Some of the Others

    en.wikipedia.org/wiki/If_You_Find_This_World_Bad...

    If You Find This World Bad, You Should See Some of the Others", also known as the "Metz speech", is a 1977 speech and essay by science fiction writer Philip K. Dick. He delivered it as the guest of honor on September 24, 1977, at the Second Metz International Science Fiction Festival in Metz, France .

  7. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    There are a number of hypotheses as to why senescence occurs including those that it is programmed by gene expression changes and that it is the accumulative damage of biological structures, particularly damage to DNA. [21] [22] [23] How do organs grow to the correct shape and size? [24] How are the final shape and size of organs so reliably ...

  8. List of unsolved problems in physics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    The following is a list of notable unsolved problems grouped into broad areas of physics. [1]Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.

  9. Sprezzatura - Wikipedia

    en.wikipedia.org/wiki/Sprezzatura

    Sprezzatura ([sprettsaˈtuːra]) is an Italian word that refers to a kind of effortless grace, the art of making something difficult look easy, or maintaining a nonchalant demeanor while performing complex tasks. The term is used in the context of fashion, where classical outfits are purposefully worn in a way that seem a bit off, as if the ...