tutorial: two kinds of box?

[ambimorph]

In http://static.rust-lang.org/doc/master/tutorial.html#ownership, both the just-introduced box operator is used, and a previously unseen parameterised type, Box. The latter is not introduced until http://static.rust-lang.org/doc/master/tutorial.html#boxes, where it is called an "owned box". This was confusing to my partner, who said "Aren't all objects owned? Is there such thing as a non-owned object?".

[ambimorph]

A few sentences further, it appears "owned" means single owner?

[steveklabnik]

Yes, this terminology has certainly gotten a bit weird.