# How exactly are socionics and MBTI different?

Socionics superficially looks exactly as MBTI. 8 functions, 16 personality types. There's even a table, perfectly corresponding socionics types with MBTI types. Then what makes socionics and MBTI importantly differ?

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One was developed in the US, one was developed in the former Soviet bloc, and both are based on Carl Jung's archetypes? (tongue in cheek aside, nice question, and I'm interested in the answer. While a wiki search might answer this, having a more coherent compare/contrast would likely be helpful) –  BenCole Apr 1 '14 at 14:03