I like back to the future! Never heard of the other one though. I belive that it might be possibale. But not the way we think. If time passed we wouldn't know.Now if we can break it up into patterens then we would know. Our watch is measurments but not actually pices of time. I belive real time can't be measured by us. If time trully exist. Don't take my word I could be wrong about this but it's a cool theory to think about!