Agree. Wasting time to me is doing something that doesn't serve a purpose, or something that you could choose not to do, but do anyway. If your doing something that you enjoy doing, for example I like to browse twitter, the purpose it serves is my enjoyment. Not everything you do has to have a specific purpose to your life, sometimes enjoyment is all we need. If you enjoy wasting that time, then it is not time wasted. If you don't enjoy wasting that time, then it is time wasted.