Ever get into a situation when a 2x2 matrix isn't enough and you need a 2³ cube? (cc @vgr)
Very, very rare. My null hypothesis in such cases is that the person thinking 2x2x2 does not understand modeling.
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(says the man who just resorted to complex analysis)
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hehe and yes, complex analysis has a ton of affordances. They just require some training to use. 2x2x2 offers weaker tradeoff
End of conversation
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