Clojurians Log v2

Describing an electric component in the argument list of a call to an e/fn is akin to defining it in a let binding block, that is, it doesn't mount the component and it does not determine its site, right? The site is determined, and the component is mounted, when the binding is referred to in the body of the called e/fn, just like let-bound components need to be "mentioned" in the let body to be actually mounted? I kind of stumbled into this behaviour (at least the mounting part; not sure about the siting one?), just confirming that I'm getting it right. If so, this is nice, another way in which Electric 3 reduces the need for macros.