/sci/ - Science & Math

If time is a man-made concept, how does time dilation work? How are the effects of gravity/speed measured without the use of time?

If I am from a civilization that has not developed the concept of time, and I approach the speed of light, how do I differentiate between the process of change in my spaceship and the process on my home planet? The "speed of change" is constant. Motion does not slow down. What then is different?

Is time an assumption?

Philosophy thread.

Because the mother of science deserves her own thread.

>inb4 some engineering undergrad plebeian comes in with his superiority complex