How its possible its something fishy for sure if bitcoin price goes up all crypto prices goes up its impossible situation every time me see saying it cause each crypto trader buyer and sellers are different and each user who buys crypto buys difrent crypto at one time how come eveyone buys all crypto at one time and all crypto prices goes up at same time did u thought that ever
its for sure something fishy or not convincing what u think of it guys !

Your not seeing the big picture. Bitcoin is the founding father of cryptocurrencies as we know them today.
Most crypto coins are traded against Bitcoin and then to fiat. Bitcoin is the medium of exchange to access fiat.
Until other cryptos are traded against fiat directly, Bitcoin will be the go to coin.
The current market depends on Bitcoin to thrive, not just because it's a medium of exchange for fiat, but also because its reputation is on the line as the founding coin. If Bitcoin fails and falls flat on its face, then people will lose hope, faith and the belief, thus the crypto dream begins to fade. Bitcoin depends on supply and demand in order to grow. Naturally, the more users who adopt Bitcoin as the go to digital currency, the larger the network and infrastructure become and the higher the initial market price per coin.
Just my two cents