I actually observe that thing that fiat affects the crypto's value so my observation was correct because as you see that the dollar goes and also bitcoin but it is also coincidence because last year the value of dollar are low and the value of bitcoin goes up so definitely the prices of two currencies are being different.

This should be one of the things that we should have promoted here and not what we are seeing today. Many of us has seeing bitcoin as investments tools and not as currency. We are concerned about how mush we would make from the push or fluctuations in pricing. Bitcoin been used as an assets to trade or invest for high profits will undermine it values and it positions as a currency.

Bitcoin is a decentralized cryptocurrency, it's a digital currency it has a value because it's release as a currency like other centralized fiat currency. it have a own usages like other products. gold is a physical commodity if you accept then it's have a value other then it's valueless commodity bitcoin also follow this rule accept and valuable.