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预防/治疗下腰痛的方法是训练核心肌群，这样可以在源头分担和减轻脊柱和下腰所承受的压力。 预防/治疗前脚掌痛的方法是拉伸小腿肌肉，这样可以增加脚踝灵活度，自然减轻站立或行走时前脚掌承受的压力。 预防/治疗膝盖痛的方法是靠墙站桩，这样可以增强股四头肌 （quadricep muscle) 的力量，提高膝盖周边关节的稳定性。 哪里痛就按摩哪里的方法，是没啥鸟用的，只有短暂的心理安慰。纯粹的静养也是治标不治本，因为源头的压力并未减少或者被分担。 再推而广之，以后遇到哪里痛或者压力大，除了减少接触压力的场景和时间外，要研究压力形成的机制，积极寻找分担压力的方法。很多时候治本的方法在别处，因为可以帮你分担压力的人也在别处！

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We recently introduced Gemini Omni Flash, our first model in the new Omni family. With Omni, you can easily create and edit high-quality videos from text, image, video or audio references. We recently gave developers access to it, and since then, we’ve seen builders all over the world use Omni to create a range of personal and professional projects. Here are some of our favorite ways we’ve seen builders use Omni so far ↓ 📽️ Switch angles and perspectives You can change camera angles, switch environments, and apply cinematic zooms — all without losing the thread of your original scene. Builder @LexnLin took full advantage of this capability, capturing a woman standing in the middle of a city from about 20 different perspectives. You see her from different angles: up close and far away, head on and in profile, from above, and from below. Some shots zoom in, while others hold still. And the background shifts, too.

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Native USDC and CCTP are now live on @XLayerOfficial by @okx! PSPs, fintechs, AI agents, and DeFi apps and protocols on X Layer can now access the world’s largest regulated dollar stablecoin for a range of use cases: → DeFi activity: Use USDC as collateral to enable onchain lending, borrowing, and spot and perps trading with 24/7 settlement → Crosschain money movement: Move USDC seamlessly across chains with CCTP for robust liquidity access to power swaps, purchases, and treasury management → AI-powered workflows: Support agentic payments on X Layer’s x402 ecosystem, enabling automated AI agent payments for services, APIs, and more → Institutional-grade settlement: Seamless USDC issuance and redemption on X Layer via Circle Mint for qualified businesses Day 1 apps: @OKX, OKX DEX Bridge With this integration, USDC is supported natively on 36 blockchains. CCTP is now available on 26 blockchains and enables secure USDC crosschain transfers.

Very welcome recent news from Signal: they are working on letting you register an account without a phone number. That said, an important counterpoint about what this would and would not accomplish. The good #1#: reducing dependence on phone numbers. Even aside from privacy benefits, reducing dependency on a highly oligopolistic system of chokepoints is good in itself. The good #2#: phone numbers are for many people not a good "root" of identity from an access control perspective. Phone numbers get sim swapped all the time. The good #3#: allowing phone-number-free accounts will make it harder for them in the future to discriminate against people by country - and so make it harder for governments to pressure them to block their own citizens. Now, on privacy. Significantly better than status quo, so yes it is good #4#, but... In practice, in 2026, I believe that pseudonymity (a long-term persistent account that is not tied to your primary identity) is a dead concept. There are just too many channels by which we accidentally slowly leak data about who we are - timing of messages, the pattern of who we send messages to with what frequency, size, etc. And too many highly effective AI-based means (both using LLMs per-user, and LLMs helping every person and agency under the sun use math that we had all along) to uncover and piece together those hints. As a trivial example, whatever server you interact with learns your IP address, but even if you hide *that* with a VPN or Tor, there are many other identity leakage vectors. And so the only defensible form of privacy is *message-by-message unlinkability* - no one except sender and receiver knows the (sender, receiver) pair, ideally even not knowing who the sender or the receiver are. A natural taxonomy of privacy is the following 2x2: * Sitting duck: adversary knows "X did Y" * Confidentiality: adversary knows "X did ???" [E2E encryption provides this] * Anonymity: adversary knows "??? did Y" [aka message-by-message unlinkability] * Ideal: adversary knows "??? did ???" Signal has already had confidentiality for a long time. (Note: in other contexts, "confidentiality" sometimes means "someone knows X did Y, and we trust that someone to not reveal it", ie. not true privacy. Here, by confidentiality we mean hiding contents from third parties) This adds pseudonymity: in the above schema, adversary knows "0x8b512c... did Y", where they don't initially know who 0x8b512c... is, but may figure that out over time. The ideal is getting to message-by-message unlinkability. Actually accomplishing that gets into territory that is currently being explored by mixnet projects as well as newer messengers, eg. @session_app and @SimpleXChat. Once we get deeper into this territory, I suspect the primary frontier will be spam and DoS protection. Right now, much of the internet blocks all Tor exit nodes - not because they personally hate privacy, but because that's where DoS attacks come from. So we need ways for people to prove their non-spammer status while maintaining message-by-message unlinkability. See here for one direction (which complements nicely). So I hope that we appreciate the victory that is mainstreaming of end-to-end encryption, that we actually get Signal accounts without phone number dependency (it's a great thing even if it had zero privacy consequences), and then that we keep moving forward and pushing the frontier of data leakage minimization.