She ecksplaynd it for Kay-oss!

@Background Pony #D7B1  

 
That is true for classical physics. Classical physics works under the premise that if you can just measure something well enough, you can reduce the uncertainty as much as you’d like.  
However, the atomic model has some weird characteristics (namely: it’s stable) that do not line up with classical physics (if you want to know: it should constantly emit radiation and the electrons should fall into the core). The solution found was to drop this premise I mentioned. Now, Energy was not continuous, but can only be added or removed in tiny, yet clearly defined ammounts. That ammount is known as a quantum. And thus quantum mechanics was born, a theory that does not support this notion you brought forth, known as determinism.  
[subject simplified, so all you fellow physicists out there don’t complain it’s actually working a tad differently]

whenever slight changes to the initial conditions cause the result to vary just as much as when large changes are made, that’s chaos. it isn’t disorder, or entropy, or anything like that. an ordered, chaotic system is entirely possible, even common. what do you think fractals are?

@mathprofbrony  

I’d have gone with a subject that affects us every day… the weather. Especially considering that chaos theory owes some of its development to people who thought it could be used for weather prediction.

@TexasUberAlles  

@PonyPon  
Chaos is simply a form of order we cannot yet perceive clearly.

@PonyPon
 
Well, depends. Turbulence, uncertainty, and noncomputability might all fall under the aegis of physics topics that involve chaos.
 
Of course if she’s referring to chaos as some sort of fantasy concept opposed to all patterns, then, well, who knows.

That seems like an oxymoron.