Wei Dai Profile picture
Jan 19 4 tweets 2 min read Read on X
Solana is under pressure, from TRUMP and MELANIA memecoins related traffic.

Three interesting graphs (snapshot taken at the time of writing):

1. Mean and median fees are both up significantly.

2. Txn failure rates is at 40%, relative to 20% before the traffic spike.

3. Interestingly, block CU utilization is down and hovering below 20M.Image
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Unlike on Ethereum, congestion on Solana leads to less full blocks, in terms of CU utialized.

This may in part be due to apps over estimating CU utilization, as pointed out below by Mert.

Another explanation to this phenomenon is that Solana is bottlenecked by network bandwidth, especially at block proposer ingress.

In Solana, transactions are streamed to pre-selected proposers via Gulf Stream, whereby nodes collecting transactions like RPCs and Jito will stream "supposedly" marketable transactions to the proposer. ("Supposedly" in quotes because ingress txns can very likely be stale especially when the system reaches capacity.)

The graph below shows that the average signer per block has also dropped significantly, suggesting that block propagation and signing are also affected.Image
This awesome dune board is by @andrewhong5297.

You can check it out here dune.com/ilemi/solana-c…

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More from @_weidai

Sep 17, 2024
1/ Is DA a commodity? Do DA layers have network effects? The debrief thread.

The most popular answer from the poll is "Yes & No".
The most argued for answer in the replies is "No & Yes".

Obviously none of the four options in the poll capture the full range of nuances.
2/ @0xBreadguy summarized the reasons for "Yes & No" (QT). To paraphrase:

- DA is a commodity because secure DA services are large indistinguishable.
- DA has no network effect because rollups don't benefit from other rollups sharing the same DA layer.

3/ On the other hand, prominent leaders from DA and rollup projects argue "No & Yes", including @anuragarjun, @0xkatz, and @colludingnode.

Response from @anuragarjun

Read 7 tweets
May 3, 2024
The EIGEN token design is bullish for ZK and bearish for restaking.

Yes, you read that right.

Read this thread to find out why 👇
2/ The whitepaper outlines two types of tasks:
1. Objective (e.g. 1 + 1 = 2)
2. Intersubjective (e.g. price of Eth rn)

It also clearly states:
- restaked ETH for objective tasks
- bEIGEN for intersubjective tasks

But, objective tasks can be proved via zk directly!
3/ ZK is already cheaper for securing objective tasks than restaking!

An AVS with $4b restaked Eth paying 1% yield amounts to $40m emission per year. In contrast, the current infra cost of full zk-rollups are typically <$10m per year!

h/t @Ismael_H_R who pointed this out to me
Read 7 tweets
Sep 28, 2023
1/ Seeing a lot of excitement on FHE recently. Here's my take in a thread: for trust-minimized applications, FHE is a game changer that enables application-level privacy. However, for it to truly shine, FHE needs to be used *alongside* other tools such as MPC and ZKP. 👇
2/ FHE enables compute on encrypted data. It can help solve the privacy issue with public blockchains--that every bits of information is recorded publicly on-chain.
3/ However, plain FHE by itself *does not* solve the privacy issues for shared state applications (e.g. @Uniswap) in the blockchain setting, as someone still holds the decryption key. The key primitive that enables trust-minimized privacy is threshold FHE, aka FHE + MPC.
Read 11 tweets
Jan 2, 2023
2022 was an exciting year, I look forward to continue my work on research, development & product in blockchains/Web3! I'm making a thread of all the talks I gave in 2022 around privacy, blockchain, and ZK. 🧵👇🏽
The first set of talks is around fully homomorphic encryption for blockchains and why zero-knowledge execution cannot provide full state-privacy for shared-state applications.


I first gave the talk at ZK Summit 7 in April. A short version of the talk is given in @EFDevcon in October.
Read 8 tweets

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