>>12876156Time is inextricably linked to space, hence the fabric of spacetime
We can perceive 3 dimensions of space and travel freely through them, but we can only perceive 1 dimension of time, and have almost no control on how we travel through it - we move in a set 1-dimensional path at a constant speed.
If we could travel to a point in the past and do something different, it would always disrupt spacetime because there would be a physical difference, no matter how imperceptible, in the configuration of physical objects at that moment. That would cause a shift in the direction we were moving through time, but on a dimensional axis we cannot perceive. Therefore at least one dimension of time we can't perceive relates to probability and the difference of possible outcomes.
This is why experiments in quantum physics don't make sense to us, because we're witnessing particles moving across a dimension of time we can't perceive. When a particle appears to exist in two places at once, it's actually just exhibiting width across a second dimension of time
