I'm going to ignoire the rudeness and leave it on a simple point:
Case in point, we cant live on 17 types forever or the game will get... stale!
We will need more!
I too fail to see the rudeness. But my problem with a lot of people suggesting new types is that they immediately jump from 17 types to 22-25 types. That's just going overboard. If you're going to add new types, add one or two and make them
really unique.
Wood, Air/Wind, Acid, and
Magic just aren't unique.
Time is the only one that's unique, but it's such an abstract concept that it's hard to realize. I guess I'm just glad that we're not still hearing about
Space type.
If new types were ever added (and I don't think they will be in this generation), I could only see three that have been brought up in this thread as being somewhat viable:
Light (aka Pure/Holy),
Sound, and
Glass. Even with Sound, I'm a bit iffy, because I don't see it as having enough variety in either design or attack. Light seems to "fit" the best into the pokemon world, and Glass seems like it could be the type that comes out of nowhere that is just really good. (That's why I'm making a Pirsor evo that is Bug/Glass.)
That would put my ideal type chart at 19 types. I might be convinced of a 20th, if it was really, really good. As it is now, we have 17 types, which allows for 289 different type interactions and dual type possibilities. 19 would put us at 361 (increase of 25%), which is already borderline too much (but would still make things fresh, if you ask me). 22, which you proposed, makes for 484 type interactions and dual type possibilities. That's an increase of 67%! That's too much.