What is 4844?

I explained what EIP-4844 is in a way that everyone can understand, from basic to expert.

- Basic-

A bus can carry 10 people. 11. If the person wants to get on the bus; We throw the man who paid the least money out of 10 people off the bus. Bus block; Transfer with passengers. The transfers in the rollup ultimately get on this bus. Getting a seat on the Ethereum bus is expensive. That's why Rollups are not cheap either. I've told this story so many times, now: 4844 says; Let's put a safe in the ass of this bus. Only Rollup passengers should board this safe. Other passengers cannot board this box and it is specific to Rollups. As such, queues and crowds decrease, and transfers in Rollups become cheaper. Rollups, NOT Ethereum itself, are getting cheaper.

- Average -

In addition to the blocks on the Ethereum blockchain, there are blockchains that carry only data, called Data Blobs. These blockchains are Rollup specific. Transactions in rollups are recorded in Ethereum with CALLDATA, and this happens in the execution layer of Ethereum. Rollups information will now be carried in the consensus layer of Ethereum. Thus, transactions will become cheaper.

- Expert -

Txs in Ethereum are priced in execution clients according to the second-price auction model introduced by EIP1559. Therefore, if every transfer made in Ethereum shifts the supply and demand curve to the right, transfer fees increase. Tx types called CALLDATA in Rollups are also priced according to this auction model, that is, if the prices in Ethereum increase, the prices in Rollups also increase. 4844; It means opening new blocks called CALLDATA blobs that are compatible with Danksharding (which can make DAS in the future) in consensus clients. These blobs are Rollup specific only and are not priced like the second-price auction above. Additionally, CALLDATA in Rollups will be deleted from blobs after a certain point (30-45 days); and its accuracy will be stored with zk proofs called KZG commitment. In this way, the load on the nodes and state bloat will be prevented.