PANews reported on December 7 that MicroStrategy founder Michael Saylor emphasized the simplicity of investing in Bitcoin in an interview with Yahoo Finance, and discussed the rise of cryptocurrencies and MicroStrategy's ongoing investment strategy. Michael Saylor said, "For the past four years, I have been saying buy Bitcoin every day, don't sell Bitcoin, just use your idle funds to continue to buy BTC, it will always appreciate against the US dollar." He suggested that Bitcoin should be regarded as a long-term asset and suggested that investors should calculate the average purchase price of Bitcoin every quarter. Saylor believes that Bitcoin should be part of a long-term investment portfolio and recommends investing idle funds in cryptocurrencies within four to ten years.