it's almost been a decade since I studied this I've since studied a good bit of astrology and Earth processes, which I think will help let's start by enumerating the challenges just a quick group of links: - [An introduction to distributed systems (2017) (github.com)](https://news.ycombinator.com/item?id=19290069) + [Class materials for a distributed systems lecture series](https://github.com/aphyr/distsys-class) - [decentralized data without clocks - Google Search]() - [Is Proof-Of-Work simply a decentralized clock? - Bitcoin Stack Exchange](https://bitcoin.stackexchange.com/questions/70744/is-proof-of-work-simply-a-decentralized-clock) - [Proof of History — A clock for blockchain – Anatoly Yakovenko – Medium](https://medium.com/@anatolyyakovenko/proof-of-history-a-decentralized-clock-for-blockchain-9d245bd5abb3)