> when there are other solutions that are way more efficient I was explicitly clear that I was commenting on proof of work blockchains. Crypto has a whole host

> when there are other solutions that are way more efficient I was explicitly clear that I was commenting on proof of work blockchains. Crypto has a whole host of other issues, but I agree that there are other blockchain/crypto-like solutions that fit - some - of the touted use cases (e.g., GNU Thaler for digital currencies and currency-backed transactions). The issue, however, is that for good or bad, crypto is currently dominated by Bitcoin. The parent comment is relevant and meaningful in this context, and should not have been flagged.