I am skeptical there will be an 'Event', something more like a gradual decline seems more likely (so, more British Empire than Roman). But if there were a complete collapse, I doubt your preparations could be really save you. Or in other words, it isn't the apocalypse if you can survive it.

>I am skeptical there will be an 'Event', something more like a gradual decline seems more likely (so, more British Empire than Roman).

I'm not sure what you mean by this. The (Western) Roman Empire's decline was not caused by "an Event" either, it was a gradual process with many causes over several centuries.

Yes, we have an overly simple picture of Visigoths etc. - I meant to suggest a scenario where there isn't chaos after empire, just a sort of reduced set of circumstances.

The British Empire was at its peak in 1922 and was largely gone by the 1960s - I think that is actually rather faster than the decline of the Roman Empire!

edit: 1992 to 1922

I think the point is that people in the UK are mostly happy, healthy and better off in many ways than when there was an actual empire.

That's not true of a lot of places when things 'go south'.

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I assume they mean 1892. But, I dunno, maybe time travel is a thing, even at the global level. ;)

If you build an army why would they remain loyal to a rich person once riches and legal ownership cease to become meaningful concepts?

They won't if you don't make it worth their while by sharing of your resources. There's many an apocalyptic novel which contains just that scenario where some rich person created himself a hideout stuffed with tech and food and weapons (and more weapons, and even more of them - the genre might as well be called 'gun porn') only to be denied access (or killed) by his own people.

Because you built the army properly and instilled that loyalty in your troops before needing to test it.

> Because you built the army properly and instilled that loyalty in your troops before needing to test it.

That presumes a lot more focus and attention than I'd assume a hedge fund billionaire would be able to devote to a low-probability bet. Also, unless your name is Erik Prince, you probably don't even have the skills. When the SHTF, your head of security (who put in the time to earn the loyalty of the troops) is going to be king.

Honestly, I think the best survival strategy for a billionaire in a post apocalyptic world is to stockpile supplies to be explicitly given as gifts to whatever community forms near your hideout. It's foolish for the ex-CEO to try to be king of a new world where he has few valuable skills, but he may be able to survive by ingratiating himself with the the nearby communities.

It might be possible, but is it a future you want to live in? How do you want to spend your time, effort and money, fighting it or preparing for it?

I don't think there is a right answer to this.

Given enough time, it's certainly possible if not even probable. But whether that is within 20 years or 200 years is likely impossible to predict.