how come btc down then all crypto down ?

[buyandsale]

how is it possible that if BTC BTC down then all crypto coins down and when its up all % up asking this cause all other cypto traders are different or buyer and sellers are different how come it can effect all other crypto too .... dont u think there is something fishy here ?

[pumbum]

a crowd of people everywhere behave the same, no matter what market or what the situation. but still the cryptocurrency market is still very young and predictable