History always repeats itself. What works 100 years ago may work now. For example, we're experiencing currency debasement. This is nothing new.
You think investment choices 100 years ago are just as valid now? Probably not.
The best way to preserve wealth is to use it to make a lot more money. Investing in startups could be a good way. Investing in certain metals (rare earth metals) could be really good too, considering limited supply and much greater demand.
The problem with metals is that they aren't nearly as rare as yo
u might think, not even gold. In the long term, you have to consider what asteroid mining will do to the metal markets. Companies like Planetary Resources will start mining asteroids within the next 20 years and will flood the market with metals like platinum, iron, cobalt, etc.
I think the most solid bets are:
-Medical Devices
-Human augmentations
-Software
-Intellectual property