Comment by Izkata

You may love to learn then: Those aren't part of change.

"i(" is a selector (see ":help object-select"), and it also works with "y" or "d" or even in visual mode. Likewise "t" is a movement that can even be used on its own.

There's also a sibling to "i", "a", that includes the delimiter used, and "t" is a valid delimiter for HTML or XML tags.