Bitcoin Cash is Bitcoin’s fork. A fork means the original Bitcoin source code was copied and worked on
independently from the original repository. The reason was simple: limitations in block size on Bitcoin’s
blockchain lead to scaling issues once Bitcoin transactions became so popular. The solution was to increase the
block size from 1MB to 8MB.
Essentially, Bitcoin Cash preserved the original idea behind Bitcoin: fast, secure, and cheap transactions, and
using Bitcoin as electronics cash. Further upgrades are in progress to make Bitcoin Cash even better, with 32MB
blocks and lightning-fast transactions.
Bitcoin Cash traded for an all-time high of $3,785.82, but its price way lower today. Actually, the whole
Bitcoin vs Bitcoin Cash feud can be understood as a fight between using Bitcoin as a trading asset (original
Bitcoin - BTC) and using it for transactions and electronic cash (Bitcoin Cash - BCH).