Noticing a contradiction when making a statement is just one way writers find contradictions, and that kind of immediate noticing would only be for obvious contradictions.

There are tons of other things you do, like recalling relevant facts related to the new statement and making sure the statement fits into the facts. You go through a timeline, make sure the statement fits into the timeline. You look at the implications of the statement, make sure those fit with other relevant facts. You opt to do these things depending on what the sentence means and implies. This is not just you "noticing" a contradiction, it's a process.

And what does how real brains work mean anyway. You can't compare writers thinking and writing a novel to some six year old writing a paragraph.

Since that November in which this technology boomed we have been much too often reading "people also drink from puddles", as if it were standard practice.

That we implement skills, not deficiencies, is a basic concept that is getting to such a level of needed visibility it should probably be inserted in the guidelines.

We implement skills, not deficiencies.

You shouldn’t be basing your entire worldview around the lowest common denominator. All kinds of writers like blog writers, novelists, scriptwriters, technical writers, academics, poets, lawyers, philosophers, mathematicians, and even teenage fan fiction writers do what I said above routinely.