Got it,

1 short the exchange rate, smash ether to buy bitcoin. When bitcoin rises and ether falls, the exchange rate plummets. Bitcoin becomes more.

2 The main force is long the exchange rate, bitcoin is sideways and does not pull, then starts to pull ether, the exchange rate rises, bitcoin becomes more. (Why did the rise of ether not bring bitcoin up? It is likely that bitcoin was obtained by buying ether and smashing it while going long)

3 Because the main force can get bitcoin by pulling and smashing the market when going long or short on the exchange rate

So sometimes bitcoin smashes 5 points and ether smashes 10 points, and sometimes bitcoin smashes ether hard. Sometimes one rises and the other makes up for it