Empire (counterfeit government) is a crime spree, and a crime spree can only last as long as there remains a ready supply of innocent victims producing anything worth stealing. As soon as the counterfeit government incorporates (corrupts) too many innocent victims, turning innocent victims into fellow criminals WHILE the ready supply of innocent, productive, victims reduces down to an unsustainable level (that natural law of diminishing returns), is as soon as said Empire begins consuming said Empire past the point of no return for said Empire.
"a) We do not learn from history because our studies are brief and prejudiced."
The concept that "we" are collectively one thing, such as we the "empire" is a lesson that ought to be understood by anyone, anywhere, anytime, for it is a form of deception by which defense is rendered powerless as accurate accountability that would be accounted accurately upon individual criminals perpetrating the crimes spree known as "Empire" is accurate accountability that is diverted unto the false front, the legal fiction, the straw man, known as "we," a false responsible being, and a false accountable being, that does not exist in demonstrable fact. If more individual people shed their "belief" in this lie, then more individual people add to the total sum of individual people who actually do learn from history.
"b) In a surprising manner, 250 years emerges as the average length of national greatness."
When did any individual ever consider the crime spree called "Empire" as anything similar to "national greatness"? How does evil become good in an individual mind? By what process does mass torture and mass murder perpetrated in the effort to transfer all power from innocent victims who produce anything worth stealing to a cabal of criminals posing as the government, or "Empire," what was the process of turning that evil process into anything worthy of "greatness" of any kind? Is the meaning of greatness somehow confused with the meaning of evil? Is that something devil worshipers do, as devil worshipers worship the greatness of evil?
"c) This average has not varied for 3,000 years. Does it represent ten generations?"
I've seen similar studies pegging the global dominant criminal power cycle at 108 years, going back at least to the Babylonian Empire. The cycle works the way it works, in part, due to the nature of human memory, and the capacity to impart accurate information from parents of families to children of families. The dominant global criminal cycle works because the capacity to transfer accurate information from generation to generation is effectively rendered powerless, and a false account is put in place of an accurate account.
d) The stages of the rise and fall of great nations seem to be:
The Age of Pioneers (outburst)
The Age of Conquests
The Age of Commerce
The Age of Affluence
The Age of Intellect
The Age of Decadence.
Case in point above is a case of a false account. Take the example of America, and the obvious ongoing (ubiquitous, constant, relentless) lie is a claim that conquest is anything other than decadence, so the criminals (under the color of law) are always busy, constantly dividing and conquering, even during so called Revolution, and few examples are provided by free people defending their power to be free FROM the crimes perpetrated by lower level organized criminals as well as the more powerful criminals working under the color of law. Independence from criminals under the color of law in the American case started in 1776 and ended in 1787. That was an age that can be outlined this way:
The Age of realization and acknowledgement (read Common Sense by Thomas Paine): time leading up to the year 1776.
The Age of forming a free market mutual defense association known as a federation: time leading up to July 4th, 1776
The Age of defense against military attack by criminals posing as saviors: The Revolutionary War
The Age of treason: (See Shays's Rebellion)
The Age of usurpation: time ending with the fraudulent ratification of the fraudulent Constitution of 1787.
The British Empire was defeated and sent packing between 1776 and 1787. That was the point at which the natural law of diminishing returns took over the British Empire, and the point at which the most powerful criminal cabal on the planet began the American Empire Crime Spree once the working federation was swept away and replaced with the counterfeit version.
"(e) Decadence is marked by:
Defensiveness / Pessimism / Materialism / Frivolity / An influx of foreigners / The Welfare State / A weakening of religion"
Again the false history. After the criminals took over the criminals immediately began a reign of decadence never before known in the history of this continent. Solving the Indian Problem with mass extermination, known as genocide, the subsidizing (a false word itself) of the slave trade, reintroducing Admiralty Law (false debt collection agency), and punishment of anyone daring to question the authority of the criminals (Alien and Sedition "Acts").
"f) Decadence is due to:
Too long a period of wealth and power / Selfishness / Love of money / The loss of a sense of duty."
More false history. Decadence is due to willful ignorance concerning the demonstrable facts in direct competition with the lies of false history. All innocent people are either inspired to defend all innocent people, or willfully ignore their own choice to willfully ignore the willful choice to feed yet another innocent individual into man-made hell on earth.
"g) The life histories of great states are amazingly similar, and are due to internal factors."
Confusing voluntary mutual defense association (or great states) with criminal "Empire" is a power commanded by criminals, so who is confused about precisely what constitutes a great state on one hand, and on the diametric opposite hand is an evil creation maintained by sociopaths, psychopaths, and their ever expanding army of sycophants?
"i) History should be taught as the history of the human race, though of course with emphasis on the history of the student’s own country."
Here is a good start:
If the question concerns how long will the genuine, organic, moral, mutual defense of the innocent victims from the guilty criminals US last, the answer is that it is perpetual, or it lasts as long as the volunteers volunteer to do the necessary work.
If, on the other hand, the question concerns how long will the counterfeit federation last, with the official start date of 1789, and if the 108 year cycle repeats, then the effective end of that Empire project, run by those criminals, is predicable with one more concept added to the math problem. The World Reserve Currency Power (current terminology for Empire) 108 year cycle is peak to peak for 3 competitive geographical areas; as explained in the book 1984 by George Orwell, in the fictional examples of Eastasia, Eurasia, and Oceana.
The outgoing Empire was England, the next in turn is USA Inc. (LLC), and then, now very obvious, is China.
A possible peak of the USA Inc. (LLC) Empire was the end of (so called) World War II, at 1945.
That means that the last peak of the last Empire (England) was 108 years earlier, and the next peak of the next Empire (China) is 108 years later.
1945 - 108 and then 1945 + 108:
1837 English Empire Peaks
1945 USA Inc. (LLC) Peaks
2053 Chinese Communist Empire Peaks
Giving that source where I was informed of the possible 108 year cycle any credit, which other's can't do unless I send the information, but I can, and affording that credit to that concept, applying it to the bottoming of the cycle, is then possible, to see when America will hit bottom, assuming that people in America do not return to their revolutionary ideas, the simple math problem is to add 54 years to USA Inc. (LLC) at time 1945.
1999
Good news?
Keeping in mind that all responsibility is individual, and unfortunately (due to criminal misdirection) most accountability is "collective," there will be a lot of individuals unjustly receiving a lot more of "their share" of the costs of doing business with the criminals, at the peak, or in the lowest of the low times.
Think in terms of War Debt Collection Agency while you may begin to realize, and acknowledge, who claims title to land in America in the coming years.