It’s time to list the claims about time made in this series of blog posts.
- Time is 3-dimensional. This is the over-arching claim which is explained and expanded by the other claims.
- Time is duration with direction. That is, time is a vector variable similar to a position vector in space.
- Time as ordinarily conceived is parametric time. That is, time along a trajectory, curve, path, route, trip, etc.
- Time has continuous symmetries of homogeneity and isotropy.
- Time and space are symmetric with one another.
- Minkowski spacetime should be expanded to six dimensions. That is, the invariant distance should be: (ds)² = (c dt1)² + (c dt2)² + (c dt3)² – (dx1)² – (dx2)² – (dx3)².
- Replacing time with its negation produces a duration in the opposite direction. It does not reverse time or switch past and future.
I am working on a paper that explains and defends these claims.