From today until June 2028, do not purchase any currency other than Bitcoin! The reasons are as follows. Reason 1: Bitcoin has been rising for 1000 days. In the past decade or so, it has never had a record of rising for more than 1100 days; Reason 2: 99% of altcoins cannot outperform Bitcoin in bear markets, and new coins (launched after 23 years) cannot outperform Bitcoin within 5 years.