It's interesting, because this thread was started with following post on September 13, 2017:
OMG, Bitcoin falling again, current price = 3866USD. [...]
The current BTC price is $6k dollars, which is still 55% up from the price 2 month ago. Meaning overall BTC is still up and at least I am not worried at all regarding the BTC price, as long as it dows not hit rock bottom.
Bitcoin cash just like other currencies is dependent on bitcoin for its market value. I don’t think so any of the coins whether it is some famous altcoins like waves or eth or bitcoin cash, is able to beat bitcoin. Bitcoin could not be surpassed by any currency at all. Yeah, there is a relationship between bitcoin and bitcoin cash, the increase in bitcoin results in increase in value of bitcoin cash.