I'm avoiding mentioning a product or category not just to avoid throwing someone under the bus, but because I can think of many examples of this. None of the software (or any other kind of product) that I use today was the first of their kind. They learned the lessons from the earlier versions, and did it better.
Even if every problem you can think of has been solved (and I'm skeptical of that), I'm sure you don't think that all existing software is already perfect. Pick something that's terrible, and do it better.