My Little Can of Worms

I just realized, I never really explained the can of worms that I opened that lead to the discussion on colors, mentioned in my previous entry.

No one was speaking, you could hear the dust settling. I can't handle silence, so I decided to ask a question.

It was something I had thought about but never written down.

I asked if we could somehow compare the lengths of time that two people spend together. I used the example of two people going to the movies together. They spend the same objective time together. They feel like they were there for different times. How do we decide if their subjective time was really different, or i it was just that their perception was different?