KNOWLEDGE NOTESKnowledge Notes
Explore curated knowledge, course notes and methods, with their existing content and sources preserved.
This index lists complete English editions. Additional Chinese notes and bilingual updates remain available in the Chinese index.
350knowledge notesFour small platforms in one. watchOS (timely and relevant · brief and efficient · Digital Crown as core · 3 navigation patterns: NavigationSplitView/TabView/NavigationStack · Series 7 three principles · large titles · 4 levels of full-screen materials · Smart Stack layout · Complications/Live Activities · watch faces: Dial/Infograph/List · full keyboard · Always-On Display (AOD) · secondary function controls) / tvOS (10 principles · content first · focus system · 5–10 Top Shelf items · avoid overstimulation · metadata as secondary · pagination arrows) / CarPlay (next-generation design system · modular instrument cluster · deep brand customization · SF variable fonts · dynamic content area · view area and safe area · automatic appearance based on time and vehicle conditions) / Games (core loop: Action-Reward-Expansion · 10 key principles: Be a Good Teacher / Remove Friction / Tune the Core Loop / Design for Touch / Foster Engagement / Background Transfers / Optimize Graphics / Introductory Videos / Localization / Use Cutting-Edge Technology · Touch-See-Hear-Feel perception loop · virtual joystick game input · adaptive layout anchors · Apple Games app + Game Center achievements/leaderboards/challenges/activities · time-limited in-app events for re-engagement).
Integration design specifications for 29 Apple system technologies (each entry = what it is + when to use it + key design points + branding/icon/naming rules). Payments & Wallet: Apple Pay (vs In-App Purchase · button styles · checkout flow)/ In-app Purchase (consumable/non-consumable/subscription · offer codes · Family Sharing)/ Wallet (5 pass types · order tracking · identity verification)/ Tap to Pay (hardware-free payment acceptance)/ Apple Card. Health & Research: HealthKit (Activity Rings specifications)/ CareKit/ ResearchKit (informed consent). Home & Car: HomeKit (home/room/accessory/zone · Siri commands)/ CarPlay (template-driven). Communication: Messages for Business/ iMessage apps & stickers/ Sign in with Apple (private relay email)/ SharePlay (3 Spatial Personas templates)/ Siri (SiriKit intent domains). Media & Recognition: AirPlay/ Live Photos/ ShazamKit/ Photo Editing/ Maps (indoor maps). AI: Generative AI (responsible design · transparency · hallucination prevention)/ Machine Learning (critical vs assistive · calibration · confidence · attribution · limitations · error handling). Identity: ID Verifier/ NFC. Cloud & Gaming: iCloud (transparent sync)/ Game Center (achievements/leaderboards/challenges/activities)/ App Clips (App Clip Codes)/ Mac Catalyst/ Always On.
Complete Apple Vision Pro / visionOS spatial computing design guide. Eye input (gaze = target recognition · gaze point privacy is not exposed · look to scroll) + 3 types of hover interaction (instant / delayed / gradient ramp · two-state switching · anchor elements · avoid unexpected motion) + gestures (system gestures: single tap / double tap / pinch-drag · eye-hand combination precision · direct vs indirect · lack of haptics compensated by audio and visuals) + comfort science (vestibular system vs visual conflict causing motion sickness · avoid head-locked content · 0.2Hz oscillation forbidden zone · depth cue conflict causing ghosting · place reading content beyond arm's length) + spatial UI layout (60pt tap target + 16pt spacing · concentric corner formula · ergonomics: left/right movement better than up/down · windows sized to content) + materials (glass has no light/dark mode · dark materials separate sections, light materials emphasize interaction · vibrancy) + immersion spectrum (Shared Space ↔ Dim ↔ Full Space ↔ Full Immersion · progressive transitions) + spatial widgets (Paper vs Glass · proximity awareness Default/Simplified · fixed physical size · Elevated/Recessed) + SharePlay (window / full space · Side-by-Side / Surround / Conversational modes) + narrative interaction (Encounter Dinosaurs) + spatial audio (randomization · distance perception) + core spatial strategies (key moments · iterative prototyping · complementary experiences).
A decision handbook for the visual "atomic layer" of Apple design. Covers color (system semantic colors · wide color gamut · Liquid Glass palettes) / typography (SF · NY · Dynamic Type · minimum font sizes per platform) / layout (grouping · hierarchy · safe areas · progressive disclosure) / spatial layout (visionOS field of view · depth · scale) / materials (Liquid Glass vs standard materials · thin/thick selection) / motion (purposefulness · optionality · visionOS motion sickness prevention) / dark mode (not a simple inversion · 4.5:1/7:1 contrast ratios) / images (@1x/2x/3x · format selection) / app icons (layering · cross-platform shape · Icon Composer) / interface icons (optical centering · vector) / SF Symbols (4 rendering modes · 9 weights · variants · animation · customization) / branding (yielding to content). Each entry includes best practices, counterexamples, and platform differences.
Starting in iOS 26, Apple’s full new visual language Liquid Glass, plus deepened SF Symbols, typographic optical sizes, and color palette system. Liquid Glass: what it is (digital "meta-material", Lensing effect, gel-like flexibility) / material layers (specular highlights/shadows/internal glow feedback/focus changes) / two variants (Regular vs Clear plus three prerequisites for Clear) / adaptivity (small controls switch between light and dark, large panels only gray at edges, soft/hard scroll edges) / structure (depicting relationships, reflecting navigation focus, elevating controls, extending to edges) / geometric concentricity (three shapes: fixed/capsule/concentric) / legibility, Tinting, accessibility / Icon Composer icon workflow (single artwork → all platforms, six appearance modes, layered export). SF Symbols: 4 rendering modes (monochrome/hierarchical/palette/multicolor), variable color, 9 weights and 3 scales, variants, drawing animations (Draw On/Off, Magic Replace, Wiggle/Rotate/Breathe/Pulse/Bounce/Scale), interpolation principles, custom symbols. Typography: SF/NY/Compact/Mono, optical sizes SF Text/Display, variable fonts, 11 Dynamic Type text styles, tracking and leading, font selection (structure/contrast/display vs text fonts). Color palette: dual tint modes, grayscale fill/separator/system gray, semantic colors.
A summary of Apple's own product operational visual design + the fall 2026 cross-platform OS design language updates (all based on UI analysis from official Apple press releases/events). Apple's Rich Scenario UI (2024+2025 product launch timeline) + Operational Visual Design. 2026 OS update main threads: ① Liquid Glass unifies all platforms (iOS/iPadOS 26 · macOS Tahoe 26 · tvOS 26 · watchOS 26 · visionOS 26) ② Deep Apple Intelligence integration (Live Translation · Genmoji · Image Playground + ChatGPT · Smart Shortcuts · on-device/private cloud models). Highlights: iPadOS 26 new window system + menu bar · macOS Tahoe Phone App + biggest-ever Spotlight upgrade + Live Activities coming to Mac · tvOS 26 Sing karaoke · visionOS 26 spatial widgets + Spatial Scenes + enhanced Persona · Apple Games app + Game Overlay · accessibility nutrition labels / Mac Magnifier / Braille / Accessibility Reader / BCI brain-computer interface · Apple Invites · new Fitness+ 2025 content · Apple Watch health research (people who close their rings have 48% lower rates of poor sleep / 73% lower rates of elevated resting heart rate / 57% lower rates of high stress).
Listen: 01:03–05:34. Qu recalls successive swings: uncertainty about model–application relationships in 2023, cooling and recovery in 2024, reasoning and agents sustaining expectations in 2025, and stronger models alongside colder application funding in his circles during 2026. He says this is the first time he has heard firms declare the category dead.
Compilation of 4 talks from the 2025 Amazon Web Services Agent lecture series. Wang Qixiang (Reasoning Model + Agent Brain + Multi-Agent Orchestrator + Framework Comparison) / Wang Xiaoyan (4 Elements of Agentic AI: Planning/Memory/Tool/Action + 3-tier Capability Ladder + RL + Product Pricing) / Chang Gaowei (ANP Protocol: email for agents, USB-C counterpart to MCP, W3C DID + P2P architecture) / idoubi (Independent development practice + AI Wrapper SOP + ProductHunt launch + programmatic SEO + all-in direction). Serves as the "industry practical perspective" supplement to the [[newtype-agent-architecture-research-2025]] research report.
Listen: 02:08–02:41, 09:53–13:59, and 36:47–39:11. Wei separates how people operate—selection, deployment, development, incentives, and adjustment—from how people and business work together through goals, responsibility, and cooperation. Recruiting belongs to the first but cannot answer what everyone should complete today.
Listen: 09:18–17:25. Wang's first layer covers language and multimodal interfaces, together with simple tasks that still involve people. Users can express needs through text, voice, or images without learning every menu. People remain responsible for judgment, handoffs, and completion. Wang compares this change to mobile internet and expresses strong confidence in it.
An agent performing tasks needs more than a capable model. It must run code, browse websites, preserve login, wait for confirmation and return to its previous position. Lei calls the supporting environments Agent Infra, or agent infrastructure. He wants Grasp to handle common browser engineering so application developers can concentrate on industry tasks.
November 2025 Caviar Agency AI Comic Drama Section 1 live class. Complete production workflow from script to finished video (script generation → storyboard table → asset library → image fusion → first and last frames → video), Hongguo Theater monetization path, six major camera movement concepts of push, pull, pan, track, follow and orbit, Jimeng/Vidu tool stack, character consistency and three-view asset library, detailed prompt description list (full checklist of body type/hairstyle/clothing/accessories/painting style), complete script case of "Recruiting Team Members in the Apocalypse, I Only Pick the Most Useless"
Open conversation has no single correct answer. A user may enjoy a response, rewrite it, delete it or request another. Reflecting on approximately a year at Character.AI, Ted discusses turning such behavior into data, training and experiments. The central subject is a system that continually discovers mistakes.
Chen’s background includes software engineering, an MBA and a CTO role. The interview follows his long-standing interest in AI, big data and cloud computing. Qu is a former colleague and expresses admiration for his investing. The useful subject is how technical change, implementation difficulty and business conditions enter one judgment, beyond a list of successful companies.
Full financing landscape of 19 toC AI interactive entertainment projects: AI short drama / comic drama / interactive drama / large model consumer applications / video generation / digital companions / digital avatar social / AI games / immersive entertainment. Key breakdown of each project's "innovation points"
57 IPOs + 55 M&As = 112 exit transactions. Hong Kong Stock Exchange Chapter 18C / cross-border mega M&A deals (Silicon Labs US$7.5 billion / Terns Pharmaceuticals US$6 billion / Moonton over US$6 billion) / A-share private placements / state-owned asset restructuring
Statistical boundaries of 2973 financing list records, and industrialization, product reuse, and capital mechanisms in associated historical reports
A panoramic view of 1135 financing events from 36Kr Pitchhub in 2026 (January–May), covering industry × round × top investors × mega deals × monthly trends, based on real data.
"Non-public" details dug out from the leaked source code of CC v2.1.88: what the dual-layer telemetry collects and that you cannot opt out / model animal codenames (Tengu · Capybara · Fennec · Numbat) + behavioral bugs in Capybara v8 / differential treatment between internal and external users / Undercover mode that hides AI identity / hourly-polling remote killswitch / unreleased features such as the KAIROS autonomous agent. Read this if you want to know "what CC hides inside"
Teardown of the leaked CC v2.1.88 source code: minimal agent loop + 12 layers of production hardening / tool interface lifecycle / permission funnel / 4 types of sub-agents / 3 context compression strategies / session persistence / MCP / bridge layer / Feature flag DCE. Read this article to understand "how CC is built internally"
