How is time a function of the fabric of nature, and not perception only?
Asked by: Dude
Answer
The second law of thermodynamics makes time a player in the 'fabric' of nature. It says
that a closed system's entropy (disorder) will increase over time.
For a simple example, think about breaking a rack of billiard balls. The initial ordered
arrangement becomes a random mix of balls. A video of the event run in reverse would be
instantly recognizable, since a random distribution of balls will not spontaneously become
orderly.
Other everyday examples, like a drop of ink spreading through a glass of water,
the breaking of an egg, etc. clearly show an arrow of time moving in a specific direction
independent of human perception.
Answered by: Paul Walorski, B.A. Physics, Part-time Physics Instructor
'For the sake of persons of ... different types, scientific truth should be presented in different forms, and should be regarded as equally scientific, whether it appears in the robust form and the vivid coloring of a physical illustration, or in the tenuity and paleness of a symbolic expression.'