Anders Lindman
Penultimate Amazing
- Joined
- Sep 17, 2010
- Messages
- 13,833
That wasn't your argument. Besides which it is theoretically possible that particles that go back in time exist. In fact positrons are indistinguishable in their behavior from electrons traveling backwards in time and can be viewed in that manner.
I'd note it has been considered that the arrow of time is no more special than the fact water flows downhill due to the forces on it.
Beyond that, the definition of a dimension doesn't have the requirement you are pretending it has. Just because time is a different kind of dimension than the spatial dimensions (a fact the math that uses time as a dimension fully acknowledges), doesn't mean it isn't a dimension or can't be used as a dimension mathematically.
Equations behaving the same in both ways for time don't match reality. Another thing with time is that the amount of information in the universe is increasing all the time. This can be observed as the process of evolution and Ray Kurzweil's law of accelerating returns (which applies not only to technology but also to biology). So there is an increase in complexity in the direction of time. And as Kevin Kelly has pointed out, the force of what he calls extropy is stronger than the destructive force of entropy. So even with ever increasing entropy there is an ever increase of extropy which means that entropy alone is not the complete cause of the arrow of time. (If entropy really was stronger than extropy the universe would have collapsed before it even would have begun.)