fusaka

以太坊历史上最奇怪的一次升级，是这么个局面：升级本身大获成功，成功到把设计它的路线图给否定了。
2025 年 12 月 3 日，Fusaka 上线。两个月后，2026 年 2 月 3 日，Vitalik 发文说，以太坊过去五年围绕的 rollup 中心化愿景"不再合理"。这两件事是同一件事。今天上线十个月了，复盘它，比追任何一次涨跌都有用。
一、Fusaka 到底改了什么
核心就一个机制，叫 PeerDAS（节点数据可用性抽样），以太坊从 2017 年分片梦想就开始追的东西。
升级之前，L2 往主网贴的数据包叫 blob，每个节点要把全部 blob 下载下来，才能确认数据真的在链上。这等于每次进货都要开箱验全批货，货柜就那么大，blob 数量卡在每块 6 个目标、上限 9 个。
PeerDAS 改成抽查：节点只随机抽一小部分样本验证，用概率保证整批数据可用。抽查代替全检，货柜立刻变大。随后 12 月和 1 月两次"只改 blob 参数"的小分叉把额度兑现：目标 14 个 blob，上限 21 个，是升级前的两倍多。同时区块 gas 上限从 4500 万提到 6000 万，主链本身也变宽了，不只是数据车道变宽。
二、效果：链真的变便宜了
按多家复盘整理的数据：L2 发帖成本大幅下降，L1 手续费经常低于 0.1 美元、清闲时段甚至到 1 美分；升级后几个月，日交易量涨了约五成，活跃地址涨了约六成。另一路测算说 L2 手续费降了 40% 到 90% 不等。
数字口径先说清楚：这些是二手整理（Osiris Trader 十个月复盘、AINvest 升级追踪），不是以太坊基金会的官方仪表盘，不同统计口径下幅度有出入。但方向上各家一致：Fusaka 之后，以太坊主链第一次在"贵"这个老毛病上，能和当初为绕开它而生的链拼价格了。
三、反讽：成功杀死了前提
原来的官方剧本是：主链保持又慢又安全，扩容交给 L2。Fusaka 是这出剧本的压轴戏——给 L2 更便宜的数据。结果它太成功了，主链自己不再慢，剧本的前提从内部被打破了。
Vitalik 二月那篇帖子点了两处裂缝：第一，L1 自己正在大步扩容；第二，L2 的去中心化比承诺慢得多，到 2025 年底只有三个主流 L2 达到第一阶段去中心化（Stage 1），多数还装着中心化的"辅助轮"。他划的界线很锋利：靠多签桥连起来的高吞吐链，不叫"扩容以太坊"。
于是 L2 的新作业变了：不再靠"帮主链扩容"立身，要在别的维度证明自己——隐私、应用专属性能、超低延迟。已经有协议提前交卷：ENS 放弃了自建 L2 的计划，留在主链上。这股潮不是口号，是已经有项目在用脚投票。
四、价格讲了另一个故事
上线当天，ETH 从约 3000 美元涨了几个百分点，成交量放大，媒体说结构性利好。然后是 12 月到 1 月的阴跌：基本面一路向好，新地址数比上线时翻倍还多，K 线却一路红。
这不是阴谋，是老剧本：升级是公开日程，利好在几个月前就被买进，上线日就是离场日。上海升级、Dencun、Pectra，每次都一样。加上一月的风险厌恶季节、比特币走弱拖累 ETH/BTC 汇率，价格和基本面背离不需要反派来解释。
有意思的是同一时期的链上记录：大户在散户恐慌抛售的跌幅里持续吸筹。这不是分发，是反向信号。今天 ETH 约 2300 美元，仍低于 Fusaka 上线时的约 3000 美元——十个月过去，价格依然没有"补上"基本面那一课。
五、我的判断框架：两块时钟
第一块是技术时钟：升级、参数、采用率，按季度走，方向明确——主链扩容这条路已经通了。下一站叫 Glamsterdam，据复盘整理有 18 项改动，押注 L1 本身，开发者已对齐向 2 亿 gas 上限推进，相当于再把主链吞吐翻三倍。
第二块是价格时钟：按持仓和情绪走，升级日是波动日，不是价值兑现日。把两块时钟混为一块，是每次升级前后亏钱最常见的姿势。
还有一层要单独算：便宜的主链对 ETH 价值捕获是双面的。费用燃烧论成立的前提，是便宜的区块空间被真实用量填满，而不是一直空着打折。Fusaka 交出的答卷是"用量涨了"，但这道题还没考完——如果 Glamsterdam 再把空间翻三倍，用量能不能跟上，是下一个要盯的数字。
风险和反面证据，照例列齐：
第一，本文引用的涨幅数字来自二手复盘整理，原始仪表盘口径不一，40% 到 90% 这个区间本身就说明别把它当精确值。
第二，L2 去中心化慢是事实，Vitalik 的转向也招来了靠旧剧本吃饭的团队的反弹——路线图一旦变成产业，改路线图就是动利益。
第三，便宜不等于 ETH 必涨。十个月的价格已经证明了这一点，拿"技术好"直接推导"币价涨"，是这篇文章最想拆掉的直觉。
第四，Glamsterdam 的 2 亿 gas 上限还只是开发者对齐的方向，不是已落地的参数，别提前把它当利好计价。
收束一句：Fusaka 的遗产不是几个参数，是一次路线更正——扩容的活，主链自己干了一大半；L2 要活下去，得先回答"除了扩容，你是干嘛的"。
最后留一个真问题：如果你是 L2 团队，扩容这个理由没了之后，你会拿隐私、专属性能还是低延迟当新招牌？为什么？评论区聊聊。
这个栏目每天一篇，每次讲透一件事。昨天讲了机构撤退日价格没跟跌，今天看以太坊最大升级的十个月复盘。明天见。
不喊单，只算账。
$ETH
#以太坊 #Fusaka #Layer2

Ethereum developers successfully activated the Fusaka upgrade on the Sepolia testnet, following its earlier Holesky deployment. Fusaka includes PeerDAS, a major data-availability change designed to let validators sample portions of blob data instead of downloading everything—an important step toward increasing Ethereum’s capacity for Layer-2 rollups.
INTERPRETATION: This is infrastructure progress rather than an immediate price catalyst. A smooth path toward mainnet could strengthen $ETH scalability narrative, while technical problems or delays would weaken near-term expectations.
🟢 Bull: Remaining testing succeeds and Fusaka progresses toward mainnet without major issues.
🔴 Risk: Bugs, delays, or weak network demand limit the market impact.
$ETH $BTC
#Ethereum #Fusaka

What is "Fusaka"?
"Fusaka" is the name given to #Ethereum 's next major hard fork, which doesn't introduce user visible features, but improves the network's internal infrastructure: scalability, efficiency, data management, and security.
A "hard fork" means that the blockchain changes certain rules: all nodes must adapt to those new rules, otherwise they won't be compatible with the new version of the network.
In simple world let's imagine Ethereum as a multi-lane highway.
As traffic (example: users, apps, transactions) increases, at a certain point, congestion builds: everything goes slower, costs more.
Fusaka is like renovating a highway: it doesn't change the destination, but adds lanes, makes traffic flow more smoothly, and prepares the system to handle many more vehicles in the coming years (i.e., more users, more apps, more transactions).
When will it happen?
December 3, 2025
What happens in the next few months?
~December 10-17 First blob space increase
~January 7, 2026 Second blob space increase
2026 Further improvements possible if all goes well
What's really changing with Fusaka?
Ethereum will gets bigger without breaking
Fusaka increases the network's "carrying capacity" without slowing it down.
This means that cheaper Ethereum-based solutions (like Arbitrum, Optimism, Base, etc.) will have more space and lower operating costs.
So: What does this mean for us?
More cheap and faster apps, lower fees in the coming months for many dApps
Data it will be managed more intelligently
Ethereum introduced a new way of processing data (called "blobs") back in March 2024. Now Fusaka is gradually increasing the space reserved for this data, week after week, as if Ethereum were expanding its storage as it sees it working
So: What does this mean for us?
Layer 2 will be more efficient 👉 apps will be faster and more sustainable 👉 end users pay less 👉 Ethereum can grow without becoming overwhelmed
Cost Control (Avoid Fee Panic)
Ethereum will introduce a way to stabilize the costs of these new "blob transactions," preventing them from becoming too high or too low.
So: What does this mean for us?
Less surprises in transaction fee, especially on Layer 2.
More security and less risk of attacks
With Fusaka, Ethereum also introduces technical limits to prevent cyber attacks, excessively large blocks, or expensive operations that could damage nodes.
So: What does this mean for us?
More reliable: Ethereum will be harder to slow down or attack.
So the question that everybody wants to know: does it make any difference if I have ETH?
Yes, potentially for the better.
Fusaka is like a "silent upgrade" but an important one. It doesn't create "pump" on its own, but it sets the stage for a much more powerful ecosystem.
Because its makes Ethereum lighter, bigger, and more "future proof"
Because
-Strengthens the network's foundation (scalability, costs, security).
- Developers will be incentivized to build more on Ethereum L2
- Costs will drop = more users
- More users = more adoption
- More adoption = more potential value for $ETH
- If everything works well, capital moves here, so bullish.
And YES, this Fusaka upgrade could help Ethereum surpass $5,000 before the end of 2025.
But Fusaka it will play the role as the key accelerator (not an immediate catalyst).
It will reinforces the narrative that "Ethereum is the future of decentralized apps."
But it will doesn't generate an immediate pump like, say, a spot ETF or a massive token burn.
ETH already has technical momentum
As of September 25, 2025:
-ETH is between $4,330 and $4,820, just a few percentage points away from breaking out of $5,040
- It has gained +125% in six months, a sign of very strong bullish momentum.
- RSI is not overbought, so there is still technical upside.
If it breaks $5,040 with volume and confidence, the next natural target is $5,530 (+14%) 🚀
In this scenario, Fusaka is fueling the rally.
The macro environment is favorable
How much does it take to surpass $5,000?
If ETH is at $4,800 today:
-To reach $5,040: a 5% gain is needed.
-To reach $5,530 (next target): a 14% gain is needed.
-If all goes well and a FOMO wave forms from an upgrade + ETF 9already approved in may 2025) + Layer 2 adoption, $6,000+ by January 2026 is realistic target
So: Fusaka = Spark + Upgrade Narrative
Fusaka alone isn't driving #ETH to $5,000+.
But if you synergize him with:
• Spot ETFs (now fully operational),
• Strong technical momentum,
• Favorable macroeconomic environment (falling inflation, Fed paused),
• Expanding DeFi/L2 adoption
👉 then Fusaka could be the final push that breaks the symbolic $5,000 barrier and opens up new resistance.
Click if you want know more about the upgrade
#Fusaka

Hey! So, there's some important but slightly technical news from the world of Ethereum that really shows how development on big blockchains works. Thought I'd break it down for you in simple terms so you're in the loop.
You know how Ethereum has not only its main network (mainnet) but also testnets—like practice grounds for developers where they test new features before releasing them into the real world. Well, the largest of these testnets, Holesky, is officially being retired.
What happened?
It will be shut down two weeks after a planned fork called Fusaka is implemented on it in September. After that, all developer teams will stop supporting it. Essentially, it's the planned decommissioning of an old testing environment.
What was Holesky for in the first place?
It was launched last year specifically for stress-testing—to see how the staking infrastructure and a huge number of validators would behave during major upgrades. It did its job: it was used to test both the previous Dencun upgrade and the upcoming Pectra upgrade. You could say it served its purpose and is now making way for something newer.
Why are they shutting it down? Were there problems?
Yes, and that's the interesting part! Earlier this year, Holesky started having technical issues—"serious inactivity leaks." Basically, the network started to "leak" and glitch, which caused a huge backlog of validators trying to exit. They eventually fixed it, but the experience left a mark. Instead of constantly patching an old system with known bugs, the developers at the Ethereum Foundation decided to build a new, clean testnet from scratch.
What will they use for testing now?
It's being replaced by a new testnet called Hoodi. It's already live and free of the problems that plagued Holesky. All the infrastructure will be moved over to it. An important note: for developers building smart contracts and dApps, the Foundation has long recommended using a different network—Sepolia. It's simpler and more stable for everyday development tasks. Hoodi is more for low-level protocol and validator testing.
How does this connect to the upcoming upgrades?
This is a good time to remember that November is the target for the major Fusaka upgrade on the mainnet. It's designed to make rollups (Layer 2s) even cheaper and faster by better distributing the data availability workload among validators. And in 2026, we're getting an even bigger upgrade—Glamsterdam—which could reduce block time to 6 seconds (from the current ~12 sec)! All of these things need to be tested perfectly first, which is why having a reliable testnet is critically important.
So, what's the bottom line?
This isn't a sign of weakness; on the contrary, it's a sign of a mature ecosystem. Instead of endlessly supporting an outdated and problematic system, the developers are making a quick decision to move to a better one. This allows Ethereum to move forward faster.
So, that's the deal. By the way, what do you think: do these kinds of technical upgrades actually affect the price of ETH in the long run, or does the market care more about other things?
$ETH #ETH #Ethereum #CryptoNewss #Holesky #Fusaka