What a bitcoin fork actually is

Bitcoin split in two in August when the digital currency officially forked creating Bitcoin Cash. Bitcoin gold was created when bitcoin forked again in October. And now the SegWit2x fork is looming. Meanwhile, bitcoin continues to hit new record highs.

We asked Nolan Bauerle, the director of research at CoinDesk, to come in to help explain what exactly happens when a cryptocurrency splits and whether it undermines the strength of the coin.