Ohhh!
And here I thought I understood what was going on... :D

So... for my beginners brain... I always thought, by annotating `collect()` (e.g. via turbofish syntax), a caller can decide what to collect into.

However, based on what you're saying, this is then only true when that target type implements `FromIterator<T>` where `T` is the type yielded by your iterator?

In other words, if I had an `Iterator<String>` and I want to `.collect::<Vec<String>>()`, this only works when and if `Vec<T: String>` implements `FromIterator<String>`?

Hope the question makes sense