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The danger to a cat of a fall, as a function of height, experiences the uncanny valley. That is, up to a certain height, the danger to the cat of a fall from that height is an increasing function of height, but then there is an interval over which the danger is decreasing (because the time of the fall is long enough for the cat to realize that it is falling, and at least partially right itself), but after this interval the danger again increases with height.
keywords: non-monotonicity, counter-intuitive result


Most literature consists of dramatic description of what happens when a linchpin is missing or is pulled.
keywords: life, General Systems Theory, stories, heroes, redemption, salvation, atonement


It seems that where one formerly said ‘reboot’ (as in “I had to reboot.”), one now says ‘restart’. When was the tipping point in this transition of terminology?
keywords: Linguistics, Language Arts, meaning, phraseology, fashion


Scouring buildings and streets, China fought the coronavirus with a scorched-earth policy.
keywords: disease, health, procedures