(Volcano Mt. Asama, northwest of Tokyo)"A River Went out of Eden"
In the electronic engineering, there are two interesting techniques called the negative feedback (NFB) and the positive feedback (PFB).
In the electronic engineering, the most important function is amplification of a voltage of input signal, since a radio signal or a TV signal received in a radio set, a TV set, or a cellular phone has only a small level of voltage.
In the circuits for this amplification, the NFB is often used to stabilize properties of the amplification function; the PFB is also used to further magnify the input signal voltage.
http://en.wikipedia.org/wiki/Feedback
As you see, part of the output signal, amplified by the amplifier "A," is added to the input signal. (The component "B" can change the phase of a signal, for example, for 90 degrees.)
In this analogy, a human incident expressed by F(x) can have some feedback added to it.
F(x) is an input to the human society "A"; accordingly the human society outputs some being amplified; this output is also input to the human society "A" as time goes by, which is not illustrated here, though.
So, a special part of this output can be also routed back and directly added to the original input F(x).
The point is that in my application this feedback can be expressed by a differential form: dF(x)/dx.
Then an effective input to the society will be F(x) + dF(x)/dx.
With appropriate coefficients "m" and "n," an incident in a certain era can be expressed as follows:
Y = m* F(x) + n*dF(x)/dx
Let’s assume that "m" << "n" in a certain era and "m" >> "n" in the subsequent era. Then we can see the following graph, as "<<" means "being far less than."
In Era 1, a phenomena may follow change in dF(x)/dx.
But, in Era 2, it will follow change in F(x).
Note also that "x" does not necessarily mean time. It can be however a function of time as expressed x(t). For example, it can be the number of people in the world who consume goods worth more than US$1.25, 12.5, or 125.0; F(x) can be total global demands for crude oil.
Please view the two figures a little more, since I may debate on them more, later.
(Why must it be a differentiated part, dF(x)/dx, instead of f(x)? That is the key point of this argument.)
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What I want to present is how to interpret human incidents happening and continuing along with time so as to form part of history.
The transition point between two eras can be the Great Depression in 1929, or September of the year 2001 or 2008.
Or it is when St. Paul heard the voice of Jesus Christ or St. Peter found God in Jesus of Nazareth.
Now what about you, folks?
(Oh, dear I never cease to wake up, walk, work, and watch some, long as I can see the light…Tant que je peux voir la lumiere!?
http://www.countrymidikaraoke.com/duocentury/Long%20as%20I%20can%20see%20the%20light%20(Creedence%20Clearwater%20Revival).kar.mid
Source: http://www.countrymidikaraoke.com/duocentury/abc.htm)
Gen 2:10 And a river went out of Eden to water the garden; and from thence it was parted, and became into four heads.
Gen 2:11 The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold;
Gen 2:12 And the gold of that land is good: there is bdellium and the onyx stone.
Gen 2:13 And the name of the second river is Gihon: the same is it that compasseth the whole land of Ethiopia.
Gen 2:14 And the name of the third river is Hiddekel: that is it which goeth toward the east of Assyria. And the fourth river is Euphrates.