分类: 信息技术预览模式: 普通 | 列表

币安赵长鹏香港大学演讲要点

作者:liurw 日期:2025-09-05

赵长鹏于2025年8月27日在香港大学“加密金融论坛”发表演讲，围绕Web3、稳定币、实物资产代币化（RWA）、去中心化交易所及香港的加密金融前景等主题，分享了以下要点：
  1. 稳定币与美元全球化：
    • 稳定币是美元全球化的重要工具，增强了美元在数字金融中的战略地位。
    • 稳定币的普及有助于提高跨境交易效率，降低传统金融体系的摩擦成本。
  2. RWA（实物资产代币化）的机遇与挑战：
    • RWA是Web3的重要赛道，通过区块链将房地产、艺术品等资产代币化，可提升流动性并降低投资门槛。
    • 面临流动性瓶颈和监管挑战：各国监管框架不一，需明确法律合规性以确保资产真实性和投资者保护。
    • 强调RWA的落地需解决技术标准和市场信任问题。
  3. 去中心化交易所（DEX）的潜力：
    • DEX在未来可能与中心化交易所（CEX）形成互补，满足不同用户需求。
    • DEX的透明性和去信任化特性将推动加密市场进一步发展，但需提升用户体验和技术效率。
  4. 加密资产财库（DAT）模式：
    • DAT为传统投资者提供了进入加密市场的新途径，通过代币化资产组合降低风险。
    • 这种模式可吸引机构投资者，推动加密金融与传统金融的融合。
  5. 香港的加密金融机遇：
    • 香港政府展现出拥抱Web3的明确态度，有潜力成为全球加密金融中心，与美国竞争。
    • 香港的优势在于政策灵活性和快速执行力，需抓住变化速度以抢占先机。
    • 建议香港完善监管框架、吸引全球人才和资本，同时推动Web3与AI技术融合。
  6. Web3与AI的融合：
    • Web3与AI结合将创造新的金融和商业模式，如智能合约自动化和数据隐私保护。
    • 看好这一趋势为香港及全球数字经济带来的创新机遇。
分类:信息技术 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 203

实物资产代币化（Real World Asset Tokenization, 简称 RWA）

作者:liurw 日期:2025-09-05

 实物资产代币化（Real World Asset Tokenization, 简称 RWA）是将现实世界中的资产（如房地产、艺术品、商品、债券等）通过区块链技术转化为数字代币（Token）的过程。这些代币代表资产的所有权或权益，并可以在区块链上交易或转移。以下是 RWA 的核心要点：

  1. 定义：
    RWA 是将有形或无形的实物资产（如房产、股票、贵金属、知识产权等）以数字代币的形式记录在区块链上。每个代币通常代表资产的一部分所有权或某种权益。
  2. 工作原理：
    • 资产评估与确权：对资产进行估值并确认合法所有权。
    • 代币化：通过智能合约在区块链上创建代币，代币与资产挂钩，可能按比例分割（如1个代币=资产的0.01%）。
    • 发行与交易：代币在区块链平台上发行，可通过加密交易所或其他平台进行买卖、转让。
    • 法律合规：通常需遵守相关监管要求（如KYC/AML），确保代币化的合法性。
  3. 优势：
    • 流动性提升：将传统上流动性较低的资产（如房地产）分割为代币，便于小额投资和交易。
    • 透明性：区块链的公开账本确保交易透明且不可篡改。
    • 全球可访问性：代币化资产可通过区块链在全球范围内交易，降低投资门槛。
    • 效率与成本：减少中介环节，降低交易成本和时间。
  4. 应用场景：
    • 房地产：将房产分割为代币，允许小额投资。
    • 艺术品与收藏品：代币化名画或稀有收藏品，方便共享所有权。
    • 金融资产：如债券、股票或私募股权的代币化。
    • 商品：贵金属、农产品等大宗商品的数字化交易。
  5. 挑战：
    • 监管不确定性：不同国家对代币化资产的法律框架尚不完善。
    • 技术风险：智能合约漏洞或区块链安全问题可能导致损失。
    • 资产真实性：需确保代币化的资产真实且合法。
    • 市场接受度：传统投资者可能对区块链技术缺乏信任。
  6. 技术基础：
    RWA 通常基于以太坊、Polygon 或其他支持智能合约的区块链平台，使用 ERC-20、ERC-721 等标准代币协议。
分类:信息技术 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 170

MacBook TouchPad基本用法

作者:liurw 日期:2025-08-05

 

Basic Gestures (One and Two Fingers)

Gesture What It Does
👉 Single Tap (1 finger) Click (like left-click on mouse)
👉 Double Tap Select text, word, or object
👉 Two-Finger Click (Tap or Press) Right-click / Context menu
👉 Two-Finger Scroll Scroll up/down/sideways in web pages, documents
👉 Pinch with 2 Fingers Zoom in/out (photos, PDFs, maps)
👉 Rotate with 2 Fingers Rotate images/documents (if supported)

Multi-Finger Gestures (Three and Four Fingers)

Gesture What It Does
👉 Three-Finger Swipe Up Mission Control — show all open windows
👉 Three-Finger Swipe Down App Exposé — see all windows of current app
👉 Three-Finger Swipe Left/Right Switch full-screen apps or desktops
👉 Four-Finger Pinch In Show desktop
👉 Four-Finger Pinch Out Launchpad (shows all apps)

 How to Customize Trackpad Settings

  1. Go to System Settings (or System Preferences on older macOS)

  2. Click Trackpad

  3. You'll see tabs like:

    • Point & Click

    • Scroll & Zoom

    • More Gestures

  4. You can:

    • Turn gestures on/off

    • Change tracking speed

    • Watch little demo videos inside each section!

 

 

🔹 1. Apple’s Official Trackpad Tutorial (Short & Clean)

📺 YouTube: Apple - Mac Trackpad Gestures
🕐 Length: ~2 minutes
📌 Covers the basics like click, right-click, scroll, zoom, swipe between desktops, and more. Simple, visual, and easy to follow.

🔹 2. "MacBook Trackpad Gestures You Should Know" by Brandon Butch

📺 YouTube: MacBook Trackpad Gestures
🕐 Length: ~8 minutes
📌 A very clear walkthrough of both basic and advanced gestures. Great for beginners and intermediate users.

🔹 3. "Hidden MacBook Trackpad Tricks" by MacMost

📺 YouTube: MacMost Advanced Gestures
🕐 Length: ~10 minutes
📌 Shows lesser-known features and customization tricks using macOS Settings + third-party apps.

✅ Bonus: Want to Try It as You Watch?

Open System Settings → Trackpad, keep that window open, and test each gesture while watching the video. You’ll see demo videos inside macOS too!

分类:信息技术 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 202

Introduction to Perplexity's Spaces

作者:liurw 日期:2025-07-25

Introduction to “Spaces”

“Spaces” is a brand-new content sharing and collaboration feature on our platform designed to help users not only ask questions but also systematically organize, showcase, and publish their own knowledge and insights. It functions like a mini-topic hub, personal blog, or thematic community, making content creation and discovery more convenient and structured.

Key Features

  • Customizable Content Themes
    Users can create their own “Space” centered around a specific topic (such as AI, large language models, health, technology trends, etc.) to plan and aggregate related content.

  • Diverse Sharing Formats
    Supports publishing various forms of content including long articles, charts, code snippets, and quoted references to suit different e­xpression needs.

  • Personal and Collaborative Modes
    Spaces can be managed individually or through invited collaborators who jointly edit and enrich the content.

  • Knowledge Archiving and Reuse
    Content within a Space is stored long-term, facilitating repeated review and deep learning, ideal for building thematic knowledge bases, notes, and case collections.

  • Following and Interaction
    Others can follow your Space, like and comment on your posts, fostering community interaction.

Who Is It For?

  • Individuals who enjoy systematically organizing knowledge

  • Users wanting to accumulate and reuse high-quality content over time

  • Teams needing to collaboratively maintain research or project documentation

  • Content creators interested in building a personal knowledge brand or sharing expertise in specific fields

Typical Use Cases

  • Creating an AI technology column that continuously updates the latest developments and practical tips

  • Archiving personal study notes into an online knowledge repository

  • Establishing an internal knowledge management platform for companies or project teams

  • Aggregating industry analyses, case studies, and thematic research collections

 

 

分类:信息技术 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 250

Stem, Inc. (ticker: STEM) 简介

作者:liurw 日期:2025-07-20

 Stem, Inc. (ticker: STEM) 简介

2025-07-18公司市场表现：上涨 46.63%


Stem, Inc. (ticker: STEM) is a leading AI-driven software and services company specializing in clean energy management. Headquartered in San Francisco, it primarily serves commercial, industrial, and utility customers worldwide by helping them plan, deploy, and operate renewable energy and energy storage assets.

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Perplexity的Comet功能 （ai回答）

作者:liurw 日期:2025-07-17

  is an AI-powered web browser launched by Perplexity AI that fundamentally transforms how users interact with the internet by integrating artificial intelligence at its core123. Unlike traditional browsers that treat AI as an add-on, Comet embeds AI deeply for seamless, context-aware browsing and task automation.

Key features of Comet include:

  • : An AI agent integrated into a sidebar that can see and understand the content of any active webpage. It allows users to ask questions, get instant summaries of articles, analyze text in documents, and interact with content like YouTube videos without switching tabs or copy-pasting124.

  • : Users can request Comet to perform complex tasks such as booking meetings, sending emails, managing tabs, or making purchases on their behalf, collapsing multiple steps into fluid, conversational interactions14.

  • Perplexity Search Engine Integration: Comet uses Perplexity’s AI search engine as the default, providing AI-generated summaries and answers directly within the browser, enhancing research and decision-making processes123.

  • : Comet offers compatibility with existing Chrome extensions and allows seamless import of bookmarks and settings. It also includes a built-in ad blocker prioritizing user privacy13.

  • : Sensitive tasks like calendar management can be processed locally on the device, with multiple tracking modes for user privacy1.

  • : Currently, Comet is exclusive to subscribers of Perplexity’s $200/month Max plan and is rolling out gradually to waitlisted users. It is available on Windows and macOS, with plans to support more platforms including mobile in the future1234.

  • : Perplexity positions Comet as a "cognitive operating system" that shifts web interaction from simple navigation to thoughtful cognition, reducing context switching and enabling users to “think out loud” while the AI executes tasks14.

Comet aims to challenge established browsers like Google Chrome by embedding advanced AI directly into the browsing experience and offering deeper task automation and personalization than typical browsers13. CEO Aravind Srinivas envisions Comet as a platform that enables "infinite retention" by becoming the default tool through which users conduct their digital lives.

 

:

Aspect Description
Product AI-powered web browser with integrated assistant
Core AI Feature Sidebar AI that understands webpage content for Q&A and automation
Functionality Summarizes content, manages tabs, books meetings, makes purchases
Default Search Perplexity AI search engine
Platform Built on Chromium; supports Chrome extensions; Windows/macOS
Availability Perplexity Max plan subscribers ($200/month); invite-only rollout
Privacy Local data storage, local processing options, built-in ad blocker
Vision Cognitive OS to transform browsing into fluid, task-driven workflow

Comet represents Perplexity’s strategic move to redefine internet browsing by integrating intelligent AI assistance that enhances productivity, understanding, and decision-making in everyday web interactions124.

 


1 参考阅读：

2 https://techcrunch.com/2025/07/09/perplexity-launches-comet-an-ai-powered-web-browser/ 

分类:信息技术 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 229

AI tools

作者:liurw 日期:2025-07-14

 The best AI tools by category

 

来源： https://www.synthesia.io/post/ai-tools 

分类:信息技术 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 435

GROK4 新功能 （ai回答）

作者:liurw 日期:2025-07-14

 Grok 4 是 xAI 推出的最新旗舰 AI 模型，相较于前代模型（如 Grok 3），在性能、功能和应用场景上均有显著提升。以下是 Grok 4 的主要新功能和特点，基于近期信息整理：1. 更强大的推理能力

  • 学术表现：Grok 4 在多个基准测试中表现出色，例如在“Humanity's Last Exam (HLE)”上，单代理版本无工具使用时得分 25.4%，使用工具后达 41%，而多代理版本（Grok 4 Heavy）更是达到 50.7%，远超 OpenAI 的 o3（21%）和 Google 的 Gemini 2.5 Pro（21.6%）。
  • 复杂问题解决：Grok 4 擅长多步骤逻辑推理，尤其在数学、科学和工程领域，接近甚至超越研究生水平。
  • 工具使用：通过强化学习训练，Grok 4 能够自主选择和使用工具（如代码解释器、网页搜索）来解决复杂问题，提升了回答的准确性和实用性。

2. 多模态支持

  • 当前能力：Grok 4 支持文本和图像输入，能够分析图片内容并提供详细描述或解释，适用于医疗影像、科学研究等场景。
  • 未来计划：xAI 计划在未来几周或几个月内推出图像生成、视频处理等功能，进一步增强多模态能力。例如，预计 2025 年 9 月推出多模态代理，10 月推出视频生成模型。
  • 局限性：目前视觉处理能力仍被 Elon Musk 称为“部分失明”，图像生成等功能尚未完全成熟，预计在后续版本（如“版本 7”）中改进。

3. Grok 4 Code：专用编程模型

  • 编程能力：Grok 4 Code 是一个专为开发者设计的模型，支持 20 多种编程语言（如 Python、Javascript、C++、Go 等），提供代码生成、调试、优化等功能。
  • 集成开发环境：内置类似 Visual Studio Code 的代码编辑器，支持文件管理、版本控制和自动化测试框架，旨在实现“代理式编码”（agentic coding），提升开发效率。
  • 实时 IDE 集成：Grok 4 Code 可无缝嵌入开发工作流，提供实时代码建议和错误检测。

4. 超大上下文窗口

  • 256K 令牌：Grok 4 的上下文窗口高达 256,000 令牌（是 Grok 3 的两倍），适合处理长文档、复杂对话和大规模数据分析，特别适用于研究和长篇内容生成。
  • API 支持：对于超过 128K 令牌的输入，需支付更高费用，但标准定价下已能满足大多数需求。

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分类:信息技术 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 256
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