Bitcoin's previous incarnation was bitcoin. Before the split blocks that it stores data in a chain and operation of the software is compatible, and all the COINS node in the bifurcate that a moment later, it began to implement new code, packaging large blocks, form a new chain.
You say what?
I guess he was missing to put cash after first bitcoin word.
He was commenting a non-sense thing about bitcoin cash. An even segwit implementation doesn't need to generate of forking the blockchain to create bitcoin cash. Bitcoin cash just another shitty altcoin with no purpose. It's only being accepted in bitcoin.com store and remember it has owned by one of bitcoin cash politician called roger ver