Thread by @ljxie

1/ I’ve been trying to wrap my head around Ethereum 2.0 since it’s a huge roadmap and there’s so many different materials on it. Here’s my understanding of what’s happening at a high level and some resources I found helpful. Corrections/further input welcome

2/ Eth2.0 is an entirely new system from Ethereum. The main features in its roadmap include sharding (splitting state into multiple parts), proof of stake, and eWASM (new virtual machine). There are multiple phases of the roadmap w/ Phase 0-2 being the most relevant to discuss

3/ Phase 0 involves the “beacon chain” which is the main chain and will eventually coordinate the shards (think hub-and-spoke model). It will use proof of stake and a new asset “beacon ETH” (BETH). You deposit ETH to get BETH (one-way) and stake 32 BETH to become a validator

4/ The work on shards is split into 2 phases and the spec is still in flux. Phase 1 is about coming to consensus on the *data* of the shards. The beacon chain randomly selects a set of validators called a committee to attest to the data in the shards. There are 1,024 total shards

5/ Phase 2 will actually have smart contracts as it includes eWASM (EVM 2.0). This allows for improved performance and devs to program in multiple languages. This is also where state rent (charge for storing state) is planned but there’s still a lot of discussion left there

6/ There's multiple teams working on different implementations of Eth2.0 including @ChainSafeth @prylabs @ParityTech @PegaSysEng and others. I love that there’s also use of open source libraries from different blockchains

https://twitter.com/gregthegreek/status/1105180620450418689

7/ Helpful Eth2.0 resources:
- @_prestwich post
hackernoon.com/what-to-expect…
- @drakefjustin presentation video

- @gregthegreek Q&A video

- @dannyryan podcast episode
zeroknowledge.fm/66
- @ethhub_io page
docs.ethhub.io/ethereum-roadm…

8/ Thanks @Aidan_IH for encouraging me to learn more and @sassal0x for answering some of my questions!