I have compiled my answer into a text version
1. Question: What does the Cancun upgrade mean to the Ethereum ecosystem? What do you think about the future competitive landscape of Layer2?
1 The core of the Cancun upgrade is to greatly reduce the gas fee of layer2, which is expected to be 10~100 times. This should be the biggest benefit for layer2. Because the gas fee of layer2 is very low now, the ETH transfer on arb is $0.08, if it is reduced by 100 times, it will be 0.0005. Then,
First, layer 2 and the current ecosystem on it will benefit directly.
Second, it can bring about larger ecological projects. For projects that require multiple interactions, the original cost may be relatively high, such as games, quantitative trading, etc. In addition, there are large-scale application projects, such as a project that generates some NFTs for users and allows transfers, etc. Because web2 users are not used to paying, and if the project party is asked to pay for users, when the number of users reaches tens of millions, then the cost will become a big problem. Now that the gas fee has been greatly reduced, these projects can be deployed on layer2.
In the future, the structure of layer 2, in fact, Cancun has the same benefits for all layer 2, and will not change the structure of layer. From a purely perspective, I think there will be a situation where several general public chains will be the leaders, and application-oriented layer 2 will be held everywhere. Chains where ecological developers gather will form economies of scale. They will often produce innovative projects, accumulate a large number of users, have high market value and money to stimulate the ecology. Now it is arb, op, etc.
In addition, due to the rise of modular blockchain, it is easy and inexpensive to build a chain. Apps with a certain user base will build a layer 2 by themselves, so that they can also optimize their own apps.
3. Question: Dear guests, what do you think are the respective advantages of zk technology and Optimistic Rollups technology in Layer2 solutions in terms of scalability? And will it affect the growth of future coin prices?
I think the advantages and disadvantages of zk technology and Optimistic Rollups technology are mainly two aspects
1) Compatibility with EVM. ARB and OP using Optimistic Rollups are very compatible with EVM. However, the compatibility of zk technology with EVM needs to be classified. Vitalik divides it into 4 levels and 5 categories. Zksyc and starnet, which we are more familiar with, belong to the fourth category and need to use high-level languages to be compatible with EVM. This also means that ecological development will require additional costs. This is why our users find them difficult to use.
2) As the name implies, zk rollup uses zero-knowledge proof to protect privacy. Optimistic certainly does not. Privacy protection is not only a future trend, but also a must in many application scenarios. For example, the new concept of full-chain games, if all actions are put on the chain, then when it comes to playing cards in the game, zk must be used.
I think, from the current perspective, because zk rollup technology is difficult and is not fully developed, it is difficult to compete with arb op at this stage. Therefore, arb op may have seized a good ecological position. However, if they find their own different application scenarios and positioning in the future, they will have a good valuation. For example, arb focuses on ecology, op does superchain, zyskc does privacy payment, and startnet specializes in games.
4. Question: Dear guests, in the current L2 ecosystem, comparing zk and op technologies, which technology do you think will perform better in the future?
As mentioned before, zk and OP have some different characteristics. In this bull market, zk's technology is not fully developed and it is difficult to compete with the OP system. However, when zk's technology matures and the ecosystem is established in the future, zk will have more advantages. But this will take a few years, maybe until the next cycle. There are too many variables in the middle, so let's consider it later.
5. Question: Now we come to the last question. With the increasing probability of ETF approval and the upcoming halving event, I would like to ask all the guests to share their views on the future medium- and long-term market conditions and whether there are any investment strategies that you can share with everyone?
In the long run, it will definitely be a bull market, and it is the bull market that everyone is looking forward to.
From the mid-term trend, there will be a wave of adjustments. Regardless of whether the ETF can be approved or not. Of course, if it is approved, there may be a short-term pull-up. But it does not change the downward trend.