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Wrinkles in the brain develop when a fetus is in the womb. These folds don't increase over a humans lifetime, nor do they decrease.  All the wrinkles develop in the brain after about 40 weeks and have nothing to do with learning new information. People with higher IQs do not have more wrinkles than others

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Because we develop our brain wrinkles during fetal development, the wrinkles we are born with are the wrinkles we have for life.

Brain plasticity is what occurs during learning and involves neural pathways which do not impact the size or number of wrinkles in the brain.

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"As the fetus grows, its neurons also grow and migrate to different areas of the brain, creating the sulci and gyri. By the time it reaches 40 weeks, its brain is as wrinkled as yours" (Freeman par ).

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Humans have more wrinkles than their mammalian counterparts

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Humans have more wrinkles than their mammalian counterparts

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What about your evidence makes it scientifically valid? 

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What about your evidence makes it scientifically valid? 

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Our evidence is from research done by the National Academy of Sciences on the formation of the brain's wrinkles. The lab study used double-layered gel and other materials to mimic the brain's composition and explain how the wrinkles of the brain were formed.

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The shape of the brain and it's wrinkles are determined by physical constraints and genetics, not learning. Learning affects neural connections and pathways rather than brain structure itself. The wrinkles form during fetal development rather than during adolescence and adulthood.

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Reliable science looks like controlled experiments performed by qualified individuals with representative groups. Reliable science is done by individuals with a background in the field in which they are conducting an experiment.

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The ridges and crevices of the brain's surface, called gyri and sulci, depend two geometric parameters; the gray matter's growth rate and thickness (Gholipour par. 2

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Researchers at the National Academy of Sciences noted that along with physical constraints, genes have a role in determining the brain's shape, because they regulate how neuron's proliferate and migrate to their destinations during fetal development (Gholipour par. 2)

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"As humans evolved as a species, our brains grew larger to accommodate all of the higher functions that set us apart from other animals. But in order to keep the brain compact enough to fit into a skull that would actually be in proportion to the rest of our body size, the brain folded in on itself as it grew" (Freeman par. 1)

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Wrinkles increase the surface area of the brain. The more surface area available the more neurons available for information processing.

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Although we do not develop new wrinkles as we learn, our brain does change. This change is known as brain plasticity which involves the rewireing of neural pathways and connections (Freeman par. 3)