You aren't even aware of the time you wasted till it's already left and there is nothing you can do. No other life you could have lived, though you could have you just didn't know, you took it for granted and there is nothing left for no one except faint memories of 'oh yeah, remember when?' Yet you only say that in your head because you're too embarrassed and too sad to reveal what was it was, those previous possibilities. They are closed and nested and entombed.