Niall Ferguson has an article on the fall of Rome which he discusses as a warning. It’s not a warning but a prognostication. It won’t be exactly the same, but the circulation of elites is an old story. Even if every political leader in Europe understood everything he said, and wished to reverse the tide of history, I cannot imagine what could be done. Let me quote:
A new generation of historians has raised the possibility the process of Roman decline was in fact sudden — and bloody — rather than smooth.
For Bryan Ward-Perkins, what happened was “violent seizure … by barbarian invaders”. The end of the Roman west, he writes in The Fall of Rome (2005), “witnessed horrors and dislocation of a kind I sincerely hope never to have to live through; and it destroyed a complex civilisation, throwing the inhabitants of the West back to a standard of living typical of prehistoric times”.
In five decades the population of Rome itself fell by three-quarters. Archaeological evidence from the late 5th century — inferior housing, more primitive pottery, fewer coins, smaller cattle — shows the benign influence of Rome diminished rapidly in the rest of western Europe.
“The end of civilisation”, in Ward-Perkins’s phrase, came within a single generation.
This is the view of another historian, Peter Heather:
The Visigoths who settled in Aquitaine and the Vandals who conquered Carthage were attracted to the Roman Empire by its wealth, but were enabled to seize that wealth by the arms acquired and skills learnt from the Romans themselves.
“For the adventurous,” writes Heather, “the Roman Empire, while being a threat to their existence, also presented an unprecedented opportunity to prosper … Once the Huns had pushed large numbers of (alien groups) across the frontier, the Roman state became its own worst enemy. Its military power and financial sophistication both hastened the process whereby streams of incomers became coherent forces capable of carving out kingdoms from its own body politic.”
I don’t mean to be so down about the future, but it is hard to see how things could change.