According to CoinMeta, Warren Buffett has long advocated for investing in high-quality companies in a simple manner, suggesting investing 10% of one's cash in short-term government bonds and 90% in low-cost S&P 500 index funds (S&P 500, code: VOO). He believes that the vast majority of investors are better suited to participating in the growth of the U.S. economy rather than trying to pick the best stocks. Buffett's investment philosophy emphasizes long-term holding and avoiding frequent trading. Currently, the performance of the S&P 500 index reflects the strong growth of the technology industry.