600k (USD) in gold. The only currency that survived 1000 years. You can't print out gold so no matter what the FED does, it won't disappear anytime soon. I'm a Software Engineer in my 30's.
I have always found raking gold as taking things to the logical extreme. Even if assume that the capitalist economy is precarious, imagining USD becoming useless is an impossible scenario. When that happens, the whole world would be in utter chaos—far more problems than what having Gold will solve.
Assuming the USD is running the world, yes, it would be the end. But it's not the case. Lehman brothers was 158 years old when it disapeared in 2008 in a blink of an eye. You should never say never.
Gold survived the last 1000 years, it's the safest asset you can own in life.