Why typeof(template) is void?

[mogu via Digitalmars-d-learn]

On Wednesday, 20 July 2016 at 08:01:01 UTC, Lodovico Giaretta 
wrote:
> Note that void is a type, while S is not. So you can do:
>
> assert(is(void)) // is(type) returns true
> assert(!is(S))   // is(template) returns false;

Thanks very much. I should have noticed this before. T.T