[Cryptography] I am not against good cryptocurrencies. I just don't think you can build one with a block chain protocol.

[Greg]

> I quite like https://arxiv.org/pdf/1809.01620.pdf <https://arxiv.org/pdf/1809.01620.pdf>, and there's an implementation: https://github.com/chainspace <https://github.com/chainspace>. Apparently Facebook liked it, too, because they bought the company. They claim 400k transactions a second, BTW.

Skimmed this. This type of stuff seems to already be done by Stellar/Ripple (without PoS), and all the various PoS chains out there (with PoS).

So what exactly new is being contributed here?

> Also, proof of work is the stupidest idea ever.

Why do you think it’s stupid, Ben?

Cheers,
Greg
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