Why do earphones get tangled?

Why do earphones get tangled?

How to tie the strongest knot ever? Put earphones in your pocket and wait one minute.

My GOD this is the worst thing that happens! But it has a pretty simple(VERY COMPLEX) reason. Knot Theory. To save you from understanding that wiki article, putting it simply a string/chord/earphone etc. has only one way to stay straight but an infinitely many ways to get tangled. There are so many of them that you could go by your entire life and still not see the same type of tangling.

Since every point on a string can be a point of contact which equals a point of tangling that string can be entangled in so many unfathomable ways. What makes it even more complex it that Chaos Theory also plays a Major role here. Even the slightest disturbance can increase the temperature of the system by a fraction of a degree thus lengthening the string making it have even more contact points and since points are infinitesimally small it leads to a whole bunch of craziness which includes tangling and you spending the next few minutes untangling. 

There are 2 critical factors for tangling 1) Length of the string . 2)Agitation Time. Other minor factors include Rigidity and Diameter but in most cases earphones have the same dimensions.

Researches also found out that the chances of a string getting tangled are dramatically more if the string measures to be 46cm to 150 cm. Typical earphones are in the range of length too (around 130- 146 cm). Furthermore the "Y" shape of earphone chord also does contribute to the tangling of earphones. 

However I guess material matters too. Earphones like those which have their outers made of a cloth are less likely to tangle.

Any thoughts, suggestions or improvements? Leave them in the comments down below!