This year has been a tumultuous one, especially for Bitcoin. Different groups within Bitcoin’s original community have not been able to even remotely agree on which protocol should be implemented in order to solve Bitcoin’s scalability problem. One particular group felt strongly that bigger blocks were the solution to the problem and so hard forked away from the original Bitcoin blockchain to create Bitcoin Cash (BCH).
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https://cryptodaily.co.uk/2017/11/roger-ver-declares-bitcoin-cash-true-bitcoin/These claims that people make, doesn't end up to be true every time. How many people do you think are going to listen to Roger here? Even though he belongs to a group of people who understood bitcoin's actual potential in the very beginning phase of bitcoin and didn't judge it in the first place.
Bitcoin cash is not a bad altcoin, but at the same time, it's not the very best(I am not talking about it in terms of price). Support from ant pool and recent events claim Chinese were involved in it's recent price pump;is not enough for bitcoin cash to take over bitcoin. Maybe in the future bitcoin cash may give a tougher fight to bitcoin, but overtaking bitcoin's spotlight is not going to happen that easily. Remember the times when people claimed ethereum will take over bitcoin and some are still trying to?