Gold and silver are most commonly referred to as precious metals, so there is no need to label them in binary as "gold" and "silver" because the price movements of both assets are mostly correlated.

This chart compares gold prices and silver prices back to 2012.

Gold Prices vs Silver Prices Historical Chart

When it comes to investment portfolios, most advisors would tell you that a portfolio should have a mix of traditional, risk-managed and alternative investments. This means that if you are invested in stocks, bonds, real estate and commodities, your portfolio should include assets such as Bitcoin to help diversify and to ensure you are not over exposed to a single asset class. If you are investing for the long-term and are risk tolerant, you would want to put 10 to 20 percent of your investments into Bitcoin and maybe other cryptocurrencies as well. Although it may sound risky to own an asset class that has significant price volatility and can even be speculative, but this is not something to ignore. It is important to diversify your assets, and Bitcoin may be just the asset you should diversify into.