Introduction to Ethereum scaling & Layer 2's

Oh boy, some concepts are (pretty) hard to wrap your mind around, two of these are scaling & layer 2's... 🤯💀

Here are some articles that I bookmarked when I wanted to understand what's exactly the problem:

• https://defipulse.com/blog/a-beginners-guide-to-ethereum-scaling-solutions/ (+ https://polynya.medium.com/the-lay-of-the-modular-blockchain-land-d937f7df4884)
• https://vitalik.ca/general/2021/01/05/rollup.html 
• https://polynya.medium.com/rollups-data-availability-layers-modular-blockchains-introductory-meta-post-5a1e7a60119d 
• https://polynya.medium.com/addressing-common-rollup-misconceptions-eba9d758707e 
• https://polynya.medium.com/why-rollups-data-shards-are-the-only-sustainable-solution-for-high-scalability-c9aabd6fbb48 

Also take a look at: A Better Mental Model for Rollups, Plasma, and Validating Bridges by Patrick McCorry