Where is the photon when the car is at the square flag?
For Tom the photon is at the triangle flag.
For you the photon is at the cabin.
By exchanging your experiences you both come to a mindboggling conclusion:
The photon must be at the triangle flag AND at the cabin. Both 'photon at triangle flag' and 'photon at cabin' coexist when the car is at the square flag. That's only possible if the photon's complete life of past, present and future events exists!
Similar scenarios show that not only the photon's complete life, but also your complete life, Tom's complete life, and the car's complete life exists in Spacetime! All the events of total Spacetime coexist!
=> Go to ....
- Relativity for Dummies
- 4D Spacetime Block Universe
- Reciprocal time dilation
- Reciprocal length contraction
- Lengths do not 'appear' contracted!
- Measuring the contracted train
- Constant light speed
- Where is the bullet?
- Train experiment
- Slower and shorter - case study
- Minkowski vs Loedel
- Spacetime video
- Further reading