Definitely. But the Magic Mouse, to use the specific example, is still functional — it still performs as a mouse.

No, not when the charge drains.

You can’t drive a car without fuel. You cant sail a boat without wind. You can’t fly a plane without fuel.

Are those things lacking functionality?

Before seeing your comment, I was thinking to myself, while holding my iPad, “Wow, I get a lot done on this.”

The technology of my life is comprised of Apple, and my life is very functional.