If time doesn't exist how come external forces can change the flow of time?
Changing the flow of time implies time is a physical construct. Please quantify the flow of time in a way that doesn't involve the past or future (which are abstract inventions of the mind). (e.g.
seconds define time using the past as a starting point, which doesn't exist.)
Time has a known interaction with space, which predicts the speed of light. No definition of time can adequately separate it from this fact- therefore, time exists.
Except it doesn't. You are perceiving a past that never existed, because the past exists only in your mind. Basic thermodynamics proves you can't reverse a process, so how do you know the process was something that existed as something else? You don't.
Uhhh, yes it does. It shows that mass obviously alters our perception of time, which means time is moving faster/slower depending on where you are. Of course it wouldn't feel that way for the observer. This would be a non-issue if time was an entirely human construct. Regardless, it has everything to do with time.
The concepts of past & future are bogus and unsupportable. Like you said, the only time is the present (and of course party time).
Mass alters energy, not time. Time has no carrier wave or particle (that has been proven) therefore it doesn't exist. I'm not surprised that any of you can comprehend this since you all have abysmal science backgrounds.
The standard model doesn't have time in it. This is because time is an abstract idea, it doesn't exist.