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Re:Send Your Brain Back in Time by YeGoblynQueenne on Sunday October 09, 2016 @07:24AM (#12670778)
Here's a nice double-bind: messing with your brain to become smarter when nobody knows exactly what the outcome will be, is a bad idea; yet, to understand this you need to not be dumb in the first place.
Re:Send Your Brain Back in Time by anon4711 on Sunday October 09, 2016 @07:44AM (#12670828)
This is already addressed in the article, e.g. here:

    There might, however, be a dark side to the story. There is
    a good reason we were designed to have finite sensitive
    periods. Takao Hensch, a Harvard neuroscientist, has
    written that plasticity takes a lot of energy: It’s
    exhausting to keep all your neural circuits in a dynamic
    state. Restricting it may protect the brain.
and in the paragraphs thereafter (I don't want to quote them here in full).