Slightly off-topic, but I was rather hoping for something on the distributed training of neural networks via the blockchain: make the "work" in "proof-of-work"

Slightly off-topic, but I was rather hoping for something on the distributed training of neural networks via the blockchain: make the "work" in "proof-of-work" involve backpropagation. Like SETI@home [1] but for training neural networks. Here's a StackExchange question about this: https://cs.stackexchange.com/questions/86364/distributing-neural-network-training-world-wide-using-blockchain https://cs.stackexchange.com/questions/86364/distributing-ne... Which links to this startup: https://www.deepbrainchain.org/ https://www.deepbrainchain.org/ A quick skim of their white paper [2] leaves me skeptical. [1] https://setiathome.berkeley.edu/ https://setiathome.berkeley.edu/ [2] https://dlc0uvc36o5o6.cloudfront.net/assets/whitepapers/DeepBrainChainWhitepaper_en.pdf https://dlc0uvc36o5o6.cloudfront.net/assets/whitepapers/Deep...