Time Travel

Microscopic temporal behavior does not automatically imply that large objects can travel backward in time. Einstein's spacetime framework joined space and time, but ordinary experience suggests time differs from spatial dimensions. Macroscopic time travel is unknown and has not been demonstrated. Recent particle reports are described as primitive and not evidence that macroscopic time travel is possible. Backward time travel is described as not obviously forbidden by time-symmetric physics. The fundamental laws of physics are presented as often time-symmetric.