My biggest investment mistake was listening to fools like Jim Sinclair and his cowboy hat wearing idiot sidekick who said "GOTS" get out of the system because everything was going to crash years ago. My friends who avoided PMs and had their money in stocks from 2010 till now are up a few hundred percent in profits while my silver stash is about the same, only because I spent much time buying undervalued cool bullion that I can flip for a profit. If I bought generic bars, etc, I would be down. So you might not go broke being all in gold/silver, but you might never make any gains either. Much smarter to diversify than go all in PMs. PS I've done better shorting particular stocks (via put options) over the past year than any "profits" I've made on my silver stash. Getting some $$$ saved for the "big one" when stocks really do tank, or to buy "calls" when a China deal is reached and the market soars (only later to crash again though as it will "someday").