We are all living in the past!
Scientists have discovered that there is a tiny 80 millisecond lag between the external reality and your brain processing the information. This time is slightly longer than a blink of an eye. Scientists compare this to the way live television is not really live but rather on a shot delay so there can be time to edit anything inappropriate (like wardrobe malfunctions)
If you want to read more information on how they tested and found this out go here