Note to self: Hyperledger Fabric

Learning new things these days could be overwhelmed when you are surrounded by information.
So I note to myself (and share) here what are some good articles about Hyperledger that I find easy to understand (i.e. not too difficult yet useful)

Assumption: Good to know, beforehand, basic concepts of blockchain, like hashing a block, PoW, mining, the motivation of mining (bitcoin)

Comparing Ethereum and Hyperledger
https://www.edureka.co/blog/hyperledger-vs-ethereum/?fbclid=IwAR2tvms4GXGVTrXqtvFOQVzUjuREWz82ISdg5G8LdPh0H6eDx-GVVGUIcwI
https://blockgeeks.com/guides/hyperledger-vs-ethereum/?fbclid=IwAR0tlKR0fSHRNtFuzsApb53oC2crDdaw4h_Iel2GpBuXG3jJ03M7MxN9-GM

Fabric concept
https://hyperledger-fabric.readthedocs.io/en/release-1.3/ledger/ledger.html

Transaction Flow
https://hyperledger-fabric.readthedocs.io/en/latest/txflow.html

How hyperledger fabric manage private data
https://hyperledger-fabric.readthedocs.io/en/release-2.2/private-data/private-data.html

Some questions I have along the way
1. How big is the world state?
2. In case a peer is down, how long to regenerate the world state?
3. How big is blockchain size?
Bitcoin blockchain grows 1MB/10mins. As of Nov 2020 its size is ~300GB
As for Hyperledger, we could config block policy.
Have it be after a specified time or a number of transactions, then form a Hash of block by using transaction hash, metadata, and previous block hash.
4. Since all peers have a copy of the whole blockchain, how does permission/private stuff works