Interesting. Do you mean 24 is now the beginning of middle age? I can’t detect changes in synaptic activity or neuroplasticity, but I can detect distinct decre

Interesting. Do you mean 24 is now the beginning of middle age? I can’t detect changes in synaptic activity or neuroplasticity, but I can detect distinct decreases in mitochondrial efficiency in my cells. Actually adults apparently can learn perfect pitch, it’s not “absolutely not possible.” https://news.uchicago.edu/story/acquiring-perfect-pitch-may-be-possible-some-adults https://news.uchicago.edu/story/acquiring-perfect-pitch-may-... As for adults learning Japanese, I intended my comment to make the OP stop spamming this link to a commercial site, not seriously. Apparently ability to detect humor and sarcasm increases with age.