Why do you claim there is no known method to increase IQ? I can definitely tell a difference in my cognitive performance based on certain practices. For instance, the better I can hold a concept entirely in my head, the better and more rapidly I can reason about it. During a period I was memorizing and solving Soduku entirely in my head, and that produced a noticeable improvement in my memory capability.
On the other hand, the less sleep I get, if I am out of shape, feeling depressed, etc. all have a negative impact on my cognitive performance.
So, while there may be individualized hard limits on cognitive performance, it also seems clearly the case that an individual's cognitive performance can be greatly improved through various habits. Think of it akin to athletic training. Some people are born with an athletic predisposition, but everyone still benefits from working out, training and diet. Hard to see why the same cannot be true for cognitive performance.
Now, taking the topic of reading vs more sensory media such as TV, the former require more internal cognitive processing to understand, whereas the latter minimize the amount of focus needed to consume the media. Based on my previous analysis, it would make sense that a reading habit would produce a higher cognitive performing individual than just consuming sensory media.
I don't claim that, I read some psychology stuff (my sister-in-law is also a psychologist, but I am not considering her as an argument). I think I also saw a few clips with Jordan Peterson telling the same; even if you don't agree with him on other matters, he is a respected professor of Psychology at the University of Toronto and he knows his stuff.
Huh I have heard the same before, and I don't know why there is such certainty. Similar to the claim bad eyesight cannot be fixed through exercises, which is not totally correct.
On the other hand, the less sleep I get, if I am out of shape, feeling depressed, etc. all have a negative impact on my cognitive performance.
So, while there may be individualized hard limits on cognitive performance, it also seems clearly the case that an individual's cognitive performance can be greatly improved through various habits. Think of it akin to athletic training. Some people are born with an athletic predisposition, but everyone still benefits from working out, training and diet. Hard to see why the same cannot be true for cognitive performance.
Now, taking the topic of reading vs more sensory media such as TV, the former require more internal cognitive processing to understand, whereas the latter minimize the amount of focus needed to consume the media. Based on my previous analysis, it would make sense that a reading habit would produce a higher cognitive performing individual than just consuming sensory media.