“你是操作系统，不是杀毒软件。即使是杀毒软件不经用户同意也不能随意删除用户文件，病毒文件也不行。”
因为google play是带商店、推送、杀毒软件于一体的综合性软件啊，而且确实要用户给那些权限它才能这么运行。 至于“即使是杀毒软件不经用户同意也不能随意删除用户文件，病毒文件也不行。” 它其他并未删除，windows defender一直就这么干，你放恶意脚本windows defender会直接隔离。
google并不拥有android这个系统，不过google play是里面权限非常高的一个软件
https://twitter.com/old_farmer_/status/1640904362443821057
我觉得就是是炒作，我试了一下安装 拼多多的apk在模拟器上；符合google自己的描述的2
“How Google Play Protect works
1.Send you a notification. To remove the app, tap the notification, then tap Uninstall.
2. Disable the app until you uninstall it.
3. Remove the app automatically. In most cases, if a harmful app has been detected, you will get a notification saying the app was removed.”
在模拟器里显示的是“拼多多 was disabled because it puts your device at risk”； icon还在，也能看app的信息，不过打不开了；可以再把它enable
https://open.spotify.com/episode/3cemC6cxTLqgFtuVdRHYgf?si=PBU7jdmCR9i_AIVR49icrw&nd=1
A very good intro podcast to zk by the developer of starknet.
ZK, zero knowledge proof is a very also tool for many applications. The most brought up topic about zk is zk rollup on ETH. Fundamentally, blockchain is really not good at any general storage or computation, that's why programs on blockchain are called smart contract. In the long term, I still don't see the system built on blockchain could or should be used to handle too much general computation. What zk rollup brings to the system is only cheap computation with minimum accessible storage (so don't expect any server software running on it).
Zk is basically proof that you know something without actually revealing the information. The basic zk validity proof roll up process to L1 is: 1. the sequencer(s) aggregates all transactions into a block 2. the prover computes the block with a special paradigm and generate the results and the validity proof of the computation. 3. the prover submits the state difference/result and the proof to L1, there will be a verifier on L1 to verify those results.(verify takes very little computational resources)
This process separates the computation from the blockchain. It's crucial since, computation will be run on all nodes on L1, not scalable at all. Now you can only verify the results, you can also bundle them to further decrease the computational requirements. As comparison to optimistic rollup, which assumes all transactions processed are valid until the fault proof process, zk roll up doesn't have to wait for the days of roll up confirmation to L1.
Zk proof is the proof of the execution of transactions, so that is blockchain agnostic, meaning it could verify another chain from one chain. One major application is BTC <-> ETH atomic swap, without zk, you'll need some oracle (program outside the chain) to know whether the BTC address you want to swap actually did follow the swap process. Now with zk proof on the BTC chain's state change, you don't have to deal with all the problems come with the oracle. And other application is storage chain verification.
The contents in the podcast are very detailed. Some interesting topic includes why computation is cheap, but storage is not; how they went from ASIC to cpu;how the states are stored; the domain specific language to program zk.
#zk #zeroknowledge #zkproof #ETH #Blockchain #scale #scaling #AtomicSwap #BTC #rollup
"“After years of frustration about slow syncing, users will be able to sync with the network much faster, and with less computation. It’s a technological leap akin to the transition from slow dial-up internet to high-speed broadband.”"
"The firm intends to use ZeroSync to power compressed transaction history proofs for its Taproot Asset Representation Overlay (Taro) protocol, which aims to power the issuance of digital assets on the Bitcoin blockchain."
如果是用iris这样的网页端的话，我感觉edge自带的翻译效果最好
Coinbase launched an Optimitic Rollup Layer 2 testnet: Base. Here's some points I think it will gain a lot of traction for mass adaption:
1. No extra token required to use it. Never understand why this is so hard for ETH, while BTC lightning network had get it done so long ago. You have to get additional token to use a network sucks! It cripples the user experience and fraction the whole ecosystem. I suspect that's one of the major reasons why ETH's adaption is so slow.
2. It's Coinbase, a lot of liquidity will be in and out of it. I know decentralized community hates centralized entity. But they are not mutually exclusive to each other. To me decentralized tech is just one subsystem of the open source tech, which had thrived due to the deeply cooperations with the tech giants. The best example is Android and google.
3. The documentations and roadmaps look good. (While tons of defi/web3 projects look like rugpull).
https://base.mirror.xyz/H_KPwV31M7OJT-THUnU7wYjOF16Sy7aWvaEr5cgHi8I
#ETH #Ethereum #Layer2 #L2 #OP #Rollup #Optimistic #adaption
"While most stablecoins are pegged to a reference asset such as the U.S. dollar, flatcoins aim to be pegged to the “price of living” by tracking consumer price index and inflation data."
"“The closest thing to that is an inflation index bond, but if you created a coin that says OK this is buying power that I know I can save in and put my money in over a period of time and transact in anywhere, I think that would be a good coin,” he said."
My take: I-bond and other inflation index bond is issued by the treasury, so wouldn't there be some regulation issue. And fundamentally, bonds are loans to that company, so it's better they can prove they are profitable enough to pay the interest.
https://base.mirror.xyz/lt3JR-mZ51q9eIOtGO36L3ZVzCTXmZVnbIiXz6crqzQ
Even though flatcoin functions slightly different, the issuer still need to prove that they will not be insolvent for the future token swapping. But from the website there's nothing mention about how coinbase will ensure that, they are passing the responsibility to the issuer.
不明白北京占据这么多资源，为什么就不愿意把城市建设搞得现代化一点。太多规划和建设不合理的地方。给我的感觉相比其他城市差很多
#[4]
似乎是 因为完全没有手段直接去看那个级别的东西，用仪器观察 它作用的东西的结果就是 这个东西有时候表现得像粒子，有时候像波。实际上叫它 particle-wave更合适，因为现实它是介于两者之间的物体。
里面也有提到 “波粒二象性”是个很不好的词，误导了理解方向
https://twitter.com/venturetwins/status/1640038880325009408
After AI challenge idolism (which I think is good), the impact of textbook history could be reduced significantly when all kinds of history can be fabricated to be experienced. I think this is the way to a more inclusive future, since people around the world can live in a less culture centric reality. So, they can stop being a sheep and do some critical thinking.
在AI挑战偶像崇拜之后（我认为这是件好事），当各种历史都可以被制造出来被体验时，教科书里历史的影响可能会显著减少。我认为这是通往更加包容的未来的道路，因为全世界的人们可以生活在一个不那么文化中心化的现实中。这样，他们就可以停止无脑跟随/或有这样的借口对自己内在的挑战放松，开始进行一些批判性思考。
#AI #Future #Society #Cultural #History #Reality
Coinbase launched an Optimitic Rollup Layer 2 testnet: Base. Here's some points I think it will gain a lot of traction for mass adaption:
1. No extra token required to use it. Never understand why this is so hard for ETH, while BTC lightning network had get it done so long ago. You have to get additional token to use a network sucks! It cripples the user experience and fraction the whole ecosystem. I suspect that's one of the major reasons why ETH's adaption is so slow.
2. It's Coinbase, a lot of liquidity will be in and out of it. I know decentralized community hates centralized entity. But they are not mutually exclusive to each other. To me decentralized tech is just one subsystem of the open source tech, which had thrived due to the deeply cooperations with the tech giants. The best example is Android and google.
3. The documentations and roadmaps look good. (While tons of defi/web3 projects look like rugpull).
https://base.mirror.xyz/H_KPwV31M7OJT-THUnU7wYjOF16Sy7aWvaEr5cgHi8I
#ETH #Ethereum #Layer2 #L2 #OP #Rollup #Optimistic #adaption
https://twitter.com/doganeth_en/status/1640062610161688577
Good implementation example for more accessible UX without sacrificing security.
Just one question, why iPhone always get to try the new stuffs first.
哦，似乎是因为实际的quantum particle不是我们理解的“粒子”，不过粒子是人类理解上最容易接受的东西。实际上是quantum particle大部分表现得像基础物理中的“粒子”，但有时候也表现得像我们理解的“波”
就是光（包括其他粒子）有粒子形态和波的形态，我的理解里应该是高纬度 塌缩到 我们维度的不同形态表现，superposition也是这样的现象
前者根本不可能，去中心就要付出成本代价。后者在中国内，没人去主动为言论自由作斗争的话，只要名气高一点都会像nostr一样被盯上。甚至不用传播什么不合规的内容，例如币价高一点，或在中老年群体传播很广泛。
为了解决搬运问题，我研究了一下区块链的基础设施———去中心储存。目前比较主流的方案是filecoin和arweave。
Filecoin对标的是百度网盘、阿里云盘这些中心化储存方案。它的工作原理是将数据分成多个小块，将这些小块存储在网络中的多个节点上，从而实现分布式存储。当用户需要访问数据时，Filecoin会查询网络中存储该数据块的节点，并使用加密技术来保护数据的安全性和隐私性。
Arweave的思路是一次缴费，即可永久存储数据，旨在为用户提供长期存储数据的解决方案。它的设计思想是将数据存储在一种称为“blockweave”的数据结构中，这种结构允许数据永久存储，而不需要依赖于数据的活跃性或节点的参与。
这两个项目放在一起，我更感兴趣的是arweave。毕竟filecoin的逻辑听起来很奇怪，做为一个去中心化储存方案，注定了储存成本更高，检索效率更慢，可数据又不能永久储存，有什么资格和中心化储存一较高下呢？
所以，我首先使用了ardrive，但它给我的体验并不如人意。首先是贵，发送一个14.39mb的文件，花费了0.01364个AR，折合0.11美元。其次是区块同步时间慢，大概等了半个小时才可以分享，而且分享链接在墙内打开是无法查看文件的。虽然有足够多的节点参与到Arweave网络中，是可以通过节点之间的连接来访问被屏蔽的内容，但显然极为不便。
于是，我又使用了web3.storage。它的价格相对便宜，免费也可以获得5gb的基础储存空间，3美元/月可以获得30gb，10美元/月可以获得120gb。但这个价格显然和中心化储存没法比。它的分享链接在微信被屏蔽了，但在网页还是可以打开的。它的这种分散式寄存方式将内容分布于网络的各个角落中，使网络防火墙的审查屏蔽变得非常困难，因为防火墙将失去需要屏蔽的目标网址或IP。但如果防火墙无法屏蔽这种传输方式，可能会进而直接屏蔽使用该IPFS协议的浏览器，所以同样存在被墙的风险。
总结一下，这两种去中心化储存方案都存在着性价比低和直接被墙的风险。这就出现了两个问题：如果是日常文件，我为什么不用国内更便宜的中心化储存呢？如果同样可以被墙，我为什么不直接翻墙用国外的中心化储存呢？
ardrive：https://app.ardrive.io/#/file/01419ef1-8b87-4410-9d45-6b75bb110176/view
web3.storage：https://w3s.link/ipfs/bafybeigb7p7m67vqc2eznllhcsrdop53zidx3k5emu7kr5cjyhosjmspda
还要一个大前提，这些链需要一直存在才能提供服务。他们还单独法币，我觉得很不可靠。
我一直觉得去中心化存储是一个非常非常非常偏门的需求，在言论自由表达正常的国家，基本没有什么内容需要这么大费周章地存在链上。那样的话，很短的文本放BTC/ETH的L1，再大一点放这些链的L2就可以了。
IPFS的节点数量会比其他足够去中心的主链还少，所以审查根本不是问题。搞这么多还不如直接翻墙，或为言论自由斗争
worldcoin在很久之前就有了，我之前一直觉得挺坑的。不过听过一个zk ML podcast他们项目方（？印象中好像是相关的researcher）的发言后，感觉技术上还是会有一点使用场景的(不代表这个token有活下去的价值)。他们宣称 “脸部识别的失败率太高了（hash collision rate高） ，所以这种非实名认证的方式 很可行”
https://open.spotify.com/episode/2x7v8jkpysQ2CRXjWlbiFn?si=f4622850d1a74942