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Arguably, bitcoin network is an example of a practical and widely deployed BFT protocol (although underlying assumptions are a bit different compared to the cla
by dunkelheit 7y ago
Arguably, bitcoin network is an example of a practical and widely deployed BFT protocol (although underlying assumptions are a bit different compared to the classical BFT setting). So the field is not dead yet.
- 314 7y agoIt is covered by the example that broadcasts 16 gagilluon messages (because it is not optimized down to the 14 gagiliion case).
- derefr 7y agoBlockchain systems are a funny case in that they don’t really need much network traffic for consensus, but they do need a whole lot of messages. All the “traffic” in a [proof of work] blockchain system consists of messages the nodes generate internally, and then discard because they’re not ‘convincing enough’ as a proof of their leadership. But yeah, if you count all those “attempted and discarded” messages up, there’s roughly a gajillion of them.