Why did the man learn to speak very easily?

Kristine: Did you speak anything when you were born?
Timothy: No. I babbled.
Kristine: You babbled, and not too well at that perhaps. But you learned English. Now, are you less capable of learning than when you were two years old?
Timothy: I suspect I am, yes. Languages have been hard for me, so maybe it’s a good example to talk about.
Kristine: Right. So when you were two years old, you were able to learn a language.
Timothy: I was able to learn English very nicely.
Kristine: Now of course you were taught in a much more healthy environment than you were in school, because you had people who loved you, and you had lots of practice, and they didn’t push you beyond whatever you could do in a given day. and you had lots of rewards.
Timothy: That’s tree.
Kristine: Well. It turns out that if you try teaching a language that way to adults, people learn a language in one-fifth, one-sixth, one-eighth the time that our conventional educational system says it takes.
Timothy: You know, now that you mention it, it’s tree, It’s called accelerated learning. In fact I even did attend a seminar, and learned how to speak quite a bit of Spanish in a few hours that way. But I forgot.
Kristine: Because you had a belief system that says, "Since I’ m not good at languages, even though I learned Spanish, a lot of it, in a few hours, that didn’t count."
Timothy: Yes, right.