Chaos Theory is nobody's friend.

It will do the sensitive math on just about anyone; in constant loops, patterns, fractals, and repetitions.

This can lead to the butterfly effect:

A butterfly flapping its wings in China can cause a hurricane in Texas (or NYC, for that matter).

It's simply when the present determines the future, but the approximate present does not approximately determine the future.

To what does this measure?

That perhaps the present is already the future...