What is the survivor bias? Detailed answer

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What is the survivor bias? Detailed answer

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What is the survivor bias?

In statistics, there is the concept of survivor bias, when researchers look for commonalities among "survivors" without paying due attention to information about the "dead".

A classic example is the task of finding a place to strengthen the armor of British bombers, set before the mathematician Abraham Wald during the Second World War. The planes that returned to the base had holes mainly on the wings and tail, but Wald reasoned that the cockpit and fuel tank needed to be strengthened, because bombers with shells that got there did not return.

The same principle applies to literature with the secrets of entrepreneurial success - blindly following the advice given in them does not mean repeating success, it is more useful to analyze the mistakes of failed companies.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What is the name of the main character in Pushkin's novel The Queen of Spades?

The name of the protagonist of Pushkin's story "The Queen of Spades" is not German. His name is generally unknown, and Hermann (precisely with two n) is the surname of the hero, a German by origin, which is quite common in Germany. But in the opera The Queen of Spades, the author of the libretto, Modest Tchaikovsky, the younger brother of Pyotr Tchaikovsky, removed one n, turning the surname Hermann into the name Herman.

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Super strong diamond glass for smartphones 17.01.2020

The American company Akhan Semiconductor has developed ultra-strong diamond glass that can be used to make foldable smartphones.

The glass, called Miraj Diamond Glass, is made from nano-diamond materials and is primarily intended for the production of foldable device displays. The manufacturer claims that compared to its counterpart from Corning, diamond glass is six times stronger than Gorilla Glass. The thickness of the material is only 100 nanometers.

Among the characteristics of Miraj Diamond Glass, the property of repelling liquids and fats is declared, so the glass does not require additional processing with an oleophobic coating. Akhan Semiconductor clarifies that the new material has already been demonstrated to several smartphone manufacturers, who have fully approved the invention.

Corning is also working on a flexible material that is 0,1 millimeters thick and has a bending range of up to five millimeters.

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