I never imagine or never though if a cryptocurrency doesn't have altcoin, and I don't know how high the bitcoin value. When there is a chance to make more money, people will tend to create a new way so they can make more and more money. Maybe that is the reason why there is altcoin besides bitcoin. And with the altcoin, it does help us to make more bitcoin, which we can convert into fiat, and we should thank you to the altcoin. Bitcoin can change people's perception of cryptocurrency, but with altcoin, cryptocurrency can survive for a long time.