Turbulence Art

A turbulent flow is random in the sense that you cannot predict what velocity a given flow will have in a specific time and place.
You could resemble the velocity of the flow at a given time and place - an unpredictable amount of kinetic energy - to the energy-level in a human being at different times at his or her life. For example, you could be happy and very active at some time, depressed and inactive at other times and so on. Statistically though, you can see that as we age, the energy-level also slowly declines.
In turbulence, big whirlpools are created at first, which then become smaller and smaller whirlpools, and eventually dissolve, where the kinetic energy becomes thermal energy, resembling death.
In other words, the ageing process in regard to energy-level, can be viewed upon as a turbulent flow; you can’t predict the energy-level at a given time, but statistically you can say that the energy-level declines as we age.

Another way of expressing turbulence is that it happens at big Reynolds numbers. The Reynolds number (a number used in fluid dynamics), simplified can be seen as measurement of the viscosity of a fluid, which describes it’s resistance to flow - a bigger Reynolds number means a higher flowing resistance in the liquid. A big Reynolds number also means that the flow is more sensitive to disturbances.
Now we can resemble the Reynolds number to the age of a person, which is also a number. As a person grows older, they won’t be as vigorous as they were when they were young; they’ll move slower, talk slower and so on. Also the turbulence in the ageing process will have increased, since they, for example, grow a bigger chance of getting certain diseases as they become older, which in turn affect the energy level. They also become more sensitive to disturbances (as with big Reynolds numbers), since for example a flu will have a much greater effect on an old person than on a young and healthy person.