Is being simple minded a good thing in the world?

I like anime very much.

Naruto from Naruto and Luffy from One Piece are the two main characters that are extremely simple minded. Like really simple minded.

And looking at them with their friends and supporters, I sometimes think that it must be amazing to fly most of the things over your head without you noticing them.

At least saves the energy required for thinking as well as the health of the brain.

What do you think?

Is being simple minded a good thing in the world?
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