[bsder]

Has anybody shown that having an adult brain with non-child plasticity is a limitation?

I find that my progress on guitar is a direct function of time, which is something else that children have in abundance but adults do not.

[dominotw]

Try learning a language.

[bsder]

I have. Probably the hardest one for English speakers--Japanese.

Again, my progress is solely a function of time. If I could spend 8+ hours a day on it like a child, I suspect I would become very good.

[analog31]

I could see pro's and con's. Non-child plasticity might help evade indoctrination or the effects of advertising.