Bitcoin was launched in 2007. It's 10 years and still no country has approved Bitcoin ?? 
and in 2018, 2nd richest man "Warren Buffet" said "bitcoin will end up badly"
and in 2018, 2nd richest man "Warren Buffet" said "bitcoin will end up badly"
Warren Buffet just wanted to stir up the market and cause panic so that bitcoin holders will sell their bitcoin and Buffet can buy more bitcoins at a very low and cheap value. It is just their strategy, they will appear as if they have no trust to bitcoin but eventually in the end they are just waiting for an opportunity to buy at a lower price.