"Makes sense." And he's picking it up quickly enough, now, given both instruction plus a moment to do something akin to practice. He really does have quite good coordination. Well. Most of the time.

"Didn't have anything like it where I came from but that's true of a lot of the things here. Magic, right?"

Seems like magic, which these people have such an abundance of. More often than not, they give "magic" as the reason for all sorts of things. It always comes as a bit of a disappointment of an answer, but he's accepted that's just how most of the other worlds are. At least devil fruits make sense.