RE: [External] : Re: ;;;###autoload declarations

[Drew Adams]

> > If you never use anything from some library then it isn't
> > loaded. That's the idea: load code only if and when you need
> > it [..]
> 
> So it isn't loaded automatically, it is loaded when needed?

It's loaded when you first invoke the command.

> Is that the same as just-in-time or lazy evaluation?

Lazy evaluation usually refers to expression evaluation, particularly in the 
context of functional, logic, or constraint programming languages.

> Maybe just different context/points of emphasis ...

Yes, you can say that.  Another, usually more general, term is "late binding": 
Don't fix/set/define something before you need to.  Keep your options open...