query: Are we really moving at the speed of light in the time dimension?
positive_passages.docid: 31825
positive_passages.text: Why are objects at rest in motion through spacetime at the speed of light?
negative_passages.docid: 4645
negative_passages.text: What is time dilation really?
negative_passages.docid: 141546
negative_passages.text: Time and distance in a photon's frame of reference
negative_passages.docid: 127383
negative_passages.text: Speed of light in general relativity
negative_passages.docid: 20037
negative_passages.text: Do photons have acceleration?
negative_passages.docid: 26363
negative_passages.text: How does faster than light travel violate causality?
negative_passages.docid: 56930
negative_passages.text: What would an observer see if he/she flew toward a clock at relativistic speeds?
negative_passages.docid: 29426
negative_passages.text: Is there a proof of existence of time?
negative_passages.docid: 67661
negative_passages.text: Is there an observable of time?
negative_passages.docid: 72416
negative_passages.text: The universe appears to have a lower bound in the time dimension, why not an upper bound?
negative_passages.docid: 12267
negative_passages.text: (Almost) double light speed
negative_passages.docid: 28488
negative_passages.text: I am confused about the idea that the speed of light is independent of the speed of the source of light
negative_passages.docid: 113249
negative_passages.text: Does time exist in a vacuum?
negative_passages.docid: 155345
negative_passages.text: Can we use curved spacetime to measure the one-way speed of light?
negative_passages.docid: 12597
negative_passages.text: Does the speed of medium affect the path of light?
negative_passages.docid: 40150
negative_passages.text: Will acceleration rate of expansion of space become faster than speed of light?
negative_passages.docid: 158250
negative_passages.text: According to special relativity, has the future already happened?