chasm theory
https://gyazo.com/a81072f92da6c4f9021fa763958f349e
innovator theory
1962
Classification of attitudes toward product purchase into five categories in order of earliest to latest purchase timing
By the way, people who use the "for some reason the classification was determined and the percentage of those people was checked and it was a percentage" way of explaining things like "there are 16% laggards" are the ones who don't understand it properly.
Correct, "defined the bottom 16% as laggards."
Some people assume that 16%, a "number that doesn't look close enough" has some deeper meaning, but it is simply a normal distribution cut off by an integer multiple of the standard deviation that is close enough.
https://gyazo.com/a309d6e77e47a3430508fb81e9f334f4
Adoption of new technology follows an S-curve, so the frequency of adoption is a bell-shaped curve, so approximate this with a normal distribution
https://gyazo.com/7c1f4c9c357119c506eaa270ffd009e5
p. 247
The normal distribution was sliced into five parts at integer multiples of the standard deviation and named
Later in the book "chasm" it is claimed that "the chasm between early adopters and early majority is deep ---
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