I have held gold and silver for almost that long.....
......but then that is real wealth, that can't just be turned off and rendered worthless by some totalitarian government on the other side of the world.....
Absolutely it can.
Gold was made illegal (for private citizens) to own in the U.S. by FDR in 1933.
Gold wasn't made legal again to own in the U.S. until Gerald Ford signed a bill in 1974.
That's 41 straight years of "rendering it useless by some totalitarian government".

And if you don't think they can or will do it again, you're crazy. It's happening in India right now.
Side note: Whatever happened to all that U.S. govt seized Gold in 41 years? Hmmm? I wonder...