Bitcoin Cash

Bitcoin Cash separated from Bitcoin in 2017 over a single question: whether to raise the block size limit to allow more transactions on-chain. It kept the 21 million cap and the SHA-256 mining, and took the opposite side of the argument that defined Bitcoin's development for years.

The scaling argument, stated fairly

Larger blocks mean more transactions and lower fees. They also mean more data for every node to store and verify, raising the cost of running one and reducing how many people can independently validate the chain. Both sides of this were serious positions held by serious people, and the split reflected a genuine disagreement rather than a misunderstanding.

What Bitcoin Cash optimised for

On-chain payments at low cost, with capacity available at the base layer rather than pushed to secondary layers. For a user sending money, larger blocks deliver directly what Bitcoin routes through Lightning and similar systems.

What the choice costs

Higher node requirements reduce the number of independent validators, and shared mining algorithm with a much larger chain means proportionally less hash power securing it. Both are measurable consequences of the design rather than criticisms of intent.

Further splits followed

The chain has itself divided again over subsequent disagreements, which is the recurring pattern when governance is settled by forking rather than by an on-chain process. Each split divides hash power, developers and users further.

Where it stands

Bitcoin Cash offers cheap on-chain payments with Bitcoin's monetary schedule and a smaller security budget. It is a coherent position on a real trade-off, and it has consistently held it.