(9azzzzzzzzzzzzzzt of 11)
In the below, because we are still in the decline of suboptimal times, there are so many words, phrases and pieces of logic we use in a very limited one-sided way.In today's context, no-brainer means something that is so obvious, so sure, so certain, so clear, so widely understood to be true, that you don't need to wonder, question or think about it, you don't have to use your head brain or any of your other brains, you don't have to use any thought process except the go-to mini thought process that says automatically accept what you hear, see and read.
The notion of something being a no-brainer can exist during any period of human history.
When no-brainer is in use in societies, it becomes the norm of the masses to use it as a primary part of thought processes as a substitute for double-checking and self-correction, thus this bad habit allows societies to be maintained.
When no-brainer is in use in civilizations, it can drain what sustains civilizations.
In a different context, the one that contains the fullness of truth, no brainer has at least two sides. The second side has just been explained.
The first side is the nu-brainer, the na-brainer, no-brainer, ne brainer and ni brainer. This is the Nun brain, the brain of the waters, the big brain denigrated as the waterhead. The Nu brainer is the nature brainer that considers the natural world context where common sense begins.
The Nu-Brain is the first brain, the first mind, the Khu brain, the spirit-soul brain, the instinctive balanced harmonious mind, the hu brain, like the sunstar that considers all angles of light, before it encounters miseducation, including self-taught miseducation.
This is why, when I am in my right mind, I circle back around to my left until I touch all four corners from the center vantage point.
This is the no-brainer container of negative, positive, belief, knowledge, self, all else, level, stable, fixed, variable, rigid, flexible, temporary, eternal, hidden, revealed.