> Why it is not that popular, I don't know. because using sha256 for proof of work was a mistake - it's too easily implemented in specialised hardware. now mi

> Why it is not that popular, I don't know. because using sha256 for proof of work was a mistake - it's too easily implemented in specialised hardware. now mining power is centralising and small groups can manipulate blockchain policies in their own interest. bitcoin should PoW-chain to a memory-hard hashing algorithm.