When The Capricious Tide Of Fate Turns

Kingdoms rise, kingdoms fall. Those who are adorned in glory today, will merely be waged with to delight in their ephemeral vanity before the inevitable dusk.

As the historical causes stand as witness to the whims of fate, the Anna Karenina principle, which states that a deficiency in any one of a number of factors dooms an endeavor to failure, warns us that several factors delude us often, and they lay in wait as black swans, only to be uncovered too late. Postmortem autopsy on history is of little consolation. Fate seems too mercurial to court. Those who pursue to fathom her mostly end in a Sisyphean curse, requited and teased with a tragic end.

Anna Karenina principle states that a deficiency in any one of a number of factors dooms an endeavor to failure, i.e. each factor is critical but insufficient on its own or without the completeness of the rest. Consequently, a successful endeavor is one for which every possible deficiency has been avoided. The principle derives from Leo Tolstoy's 1877 novel Anna Karenina, which begins: "All happy families are alike; each unhappy family is unhappy in its own way".
A realization of an event shares a common set of attributes which lead to the fulfilment, while any of a variety of attributes that is irrelevant or do not meet the criteria results in an non-existence.