Post quick questions here if you don't want to make a whole other thread. I'll start it off.

Why do duals have a strong tendency to VI rather similarly? For example, guess who types as what here if you're not familiar with all of these:

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People also mistype people as their duals without seeing them fairly often as well, interestingly. Duality pairs seem to have the same method of acting but 1/2 of the tools to do it really well is what I see.