Why Steve Jobs is ISTP

By Guilherme Varela with additions by Ryan Smith

When assessing someone’s type we must be vigilant not to mistake the contents of their psychic functions for the psychic functions themselves. That is probably the number one mistake that is made by people who attempt to type by the functions. They view them as behavioral traits, rather than as ways of structuring information in the psyche.

When assessing the types of successful businesspeople we should be careful not to believe in embellished press articles, as these almost always have a habit of making anyone who beat the market into the stock figure of “lone visionary with long term plans.” With regards to large organizations, no man is an island. For Jobs to spend one day as CEO of Apple, thousands of people would have to interact with each other, and thousands of people would be placed in a position where they could share their ideas with him....

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