Reminder: the "blobs get deleted after 18 days" thing is super overrated.

So 4444 means that nothing is permanent on Ethereum? Seems bad to me. I guess permanent content should get sent to Filecoin or something maybe?

We wanted eternal life, instead we got 140 new genders

Requiring literally every node to store the whole content was always an overkill way to achieve permanence. I think each node storing ~1% of the data is probably the right balance. Making each ethereum node also a portal node by default would be cool.

this is getting a bit confusing to me. I have to go do a bit more research into DA.

my initial understanding of blockchain is that state are stored “permanently on-chain” to preserve integrity.

if this is not the case anymore, what are the trade offs to this new approach?

Hustling on Starknet | Cairobook writer & Intern at Nethermind 

Ethereum CALLDATA is stored permanently onchain. 

But that seriously limits Ethereum's scalability... imagine if one's personal files had to be small enough that your computer could store EVERYONE's data, not just your own!