Shout Out to Agents of SHIELD

I'd just like to take a moment to applaud Agents of SHIELD, and their most recent treatment of time.  It felt a little bit like they were sticking their tongues out at the CW, and I'm totally cool with that.

Something terrible is going to happen.  I saw it.

Maybe we can stop it?

Yeah, maybe we can stop it?              Sure, we can totally stop it.

Guys, you can't stop it.

He's right guys.  It's science.

Uh... What?

Okay, look, this will be easier if I just rip off Flatland...

Let's say we only existed in two dimensions, represented here by a sheet of paper.  

As we moved through the paper stack it would seem to us as though only our current layer actually existed, when, in reality, the entire stack is there the whole time, we just can't perceive it.

 What Fitz is saying is that time is a fourth dimension, which we cannot truly perceive, and therefore we believe things change as we move through it, when in reality it is a solid and immutable whole.

Basically, he's saying Legend of Tomorrow can stuff it.