The Polkadot Journey
summary
Polkadot presents a layer‑zero network that uses parachains for heterogeneous sharding, a developer SDK called Substrate (1.0 in 2019, 2.0 released recently), and consensus combining nominated proof‑of‑stake with GRANDPA finality. Network launches start May 2020; Rococo runs the first public parachain tests Aug 2020. Ecosystem metrics: 900+ related GitHub repos, 100+ teams building Substrate chains (60 with testnets), 244 active validators (350 queued), ~7,000 nominators, ~$3B value staked and ~ $65M combined treasuries (52 proposals funded ~$3.5M so far).
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chapters (13)
- 0:00Introduction to Polkadot
- 0:34Bitcoin and Web 3.0
- 2:00Ethereum's role
- 2:54Web 2.0 limitations
- 6:19The need for Web 3.0
- 9:29Challenges of Ethereum
- 11:56Custom blockchains
- 13:39Blockchain development risks
- 15:34Introducing Polkadot
- 19:13On-chain treasury
- 20:20Polkadot roadmap
- 22:49Ecosystem growth
- 24:09Network activity
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