I would say that it has to do with the consequences of each mistake. When you subconsciously assume that others think the way you do, you might see someone's action and immediately assume they have done it for the reason you would have done it (or, if you can't conceive of a reason you would do it, you might assume they are stupid or insane).
On the other hand, assuming people's minds differ from you may not lead to particular assumptions in the same way. When you see someone do something, it doesn't push you into thinking that there's no way the person did that for any reason you would do it. I don't think it will have that same kind of effect on your subconscious assumptions. I might be missing something, though. How do you see the atypical mind fallacy affecting your behaviour/thoughts in general?
For example, I often think I am unusually cowardly or clumsy. Then I am totally surprised when I find after like 3 months of martial arts practice I am already better on both accounts than like 20-30% of the new starters, I was sure I will never ever get better at it, which roughly predicts average ability - but then why does it feel so unusually low?
I tend to think others are far more social than me. Then I start wondering, the fact that we are living in the same flat for 3 years now and never had a chat with a neighbor cannot be 100% my fault, it is 50% mine for not initiating such a conversation, but also 50% theirs as they too didn't. So it may actually be they are not that much more social than me.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.