Yoonchul Yi
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2026-03-12

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๐Ÿ“ฐ Daily Digest โ€” 2026-03-12

9 items | Business, AI, DevTools, Misc


๐Ÿ“‹ Quick Summary

Your Pitch Deck Isnโ€™t Enough

Source: a16z speedrun (Substack) ยท Category: Business ยท Link: Original

  • The post argues fundraising often stalls at the internal investment-committee memo stage, where one partner must persuade the rest of the firm.
  • A founder-written memo can outperform a slide deck by reducing investor reconstruction work and speeding due diligence.
  • It provides a practical memo template (team, problem, product, GTM, business model, traction, competition, long-term expansion) and stresses precise metric labeling.

Yann LeCun Raises $1 Billion to Build AI That Understands the Physical World

Source: WIRED ยท Category: AI ยท Link: Original

  • Advanced Machine Intelligence (AMI), cofounded by Yann LeCun, raised over $1 billion at a reported $3.5 billion valuation.
  • LeCun says human-level intelligence will require world models grounded in physical reality, not just scaled language models.
  • AMI plans global operations and industry work in sectors like manufacturing, robotics, and biomedicine with a safety/controllability focus.

Writing my own text editor, and daily-driving it

Source: blog.jsbarretto.com ยท Category: DevTools ยท Link: Original

  • The author replaced a long-used editor (Howl) due to stagnation, weak project search, GUI-only constraints, and no integrated terminal.
  • He built a personal-first editor with intentionally narrow scope, hard-coded preferences, and iterative TUI simplification.
  • Daily-driving it for real tasks, logging friction, and fixing pain immediately drove most of the projectโ€™s ~10k LOC in the past six months.

AI-powered apps struggle with long-term retention, new report shows

Source: TechCrunch ยท Category: Business ยท Link: Original

  • RevenueCatโ€™s 2026 report (based on 1B+ transactions and $11B+ developer revenue) says AI apps churn annual subscribers about 30% faster at median.
  • Retention is lower for AI apps (annual 21.1% vs 30.7%, monthly 6.1% vs 9.5%) and refund rates are higher (4.2% vs 3.5%).
  • AI apps still outperform early monetization metrics, including trial-to-paid conversion (8.5% vs 5.6%) and higher realized lifetime value.

Meta acquired Moltbook, the AI agent social network that went viral because of fake posts

Source: TechCrunch ยท Category: Business ยท Link: Original

  • Meta confirmed it acquired Moltbook and is bringing its team into Meta Superintelligence Labs; deal terms were not disclosed.
  • Moltbook gained attention as a Reddit-like network where OpenClaw-connected agents appeared to interact in public.
  • The viral narrative was partly fueled by weak security that let humans impersonate AI agents, exposing authenticity and trust issues.

most people suck at growth

Source: X (Audrey) ยท Category: Business ยท Link: Original

  • The thread frames growth as simple in definition but hard in execution: the only job is to get paying customers consistently.
  • It recommends high-volume, repeatable channels (especially email-centric funnels) over flashy tactics or personal online fame.
  • Success is defined as revenue and conversion movement, not vanity indicators like views, waitlists, or fundraising headlines.

I was interviewed by an AI bot for a job

Source: The Verge ยท Category: Misc ยท Link: Original

  • The reporter tested three AI-led interview systems and found the interaction still felt noticeably less natural than a human interview.
  • Interview-tech vendors position AI screeners as a way to evaluate far more applicants at the first stage.
  • The piece highlights ongoing bias concerns and the โ€œuncanny valleyโ€ response in real candidate experience.

Codex, File My Taxes. Make No Mistakes.

Source: X (Kyle Corbitt) ยท Category: DevTools ยท Link: Original

  • The author ran a side-by-side test: external accountant versus Codex on a complex 2025 return with multiple income sources and special cases.
  • Codex handled fact-finding, document tracking, and built a custom Python tax engine when consumer tax platforms lacked usable APIs.
  • A $20k discrepancy was traced to a missed adjustment-escrow item by the accountant; after correction, the accountantโ€™s numbers aligned with Codex.

The State of Consumer AI. Part 2: Engagement and Retention

Source: X (Apoorv Agrawal) ยท Category: AI ยท Link: Original

  • The analysis says ChatGPT leads AI usage (~70% WAU) and shows even stronger engagement separation from peers like Gemini (~20% WAU).
  • Reported engagement is 45% DAU:MAU for ChatGPT vs 22% for Gemini, with ChatGPT WAU:MAU rising from ~50% to ~82% since 2023.
  • Week-4 retention is cited at ~66% for ChatGPT versus lower AI-peer figures, with a rare โ€œsmileโ€ retention curve suggesting reactivation momentum.

๐Ÿ“ Detailed Notes

1. Your Pitch Deck Isnโ€™t Enough

  • The core claim is that winning investor conviction is not enough; founders must help investors win internal alignment at IC memo time.
  • The memo is positioned as a leverage tool that reduces partner workload and preserves nuance better than short decks and scattered notes.
  • The template prioritizes team credibility, crisp problem framing, concrete GTM path, credible monetization, and traction context by stage.
  • It also warns founders to avoid trust-breaking metric inflation, especially around recurring-revenue terminology.

2. Yann LeCun Raises $1 Billion to Build AI That Understands the Physical World

  • AMI launches as LeCunโ€™s first major commercial venture post-Meta, with significant capital and a multibillion-dollar valuation.
  • Its thesis rejects โ€œLLM scaling aloneโ€ as the path to human-level AI and instead emphasizes world models with memory, planning, and control.
  • The company targets enterprise-heavy verticals where physical-system modeling can produce measurable operational gains.
  • Investor lineup and global office footprint signal both scientific ambition and aggressive commercialization intent.

3. Writing my own text editor, and daily-driving it

  • The post explains why existing tools still missed the authorโ€™s workflow needs, especially around remote work and high-friction search tasks.
  • Early development improved after he constrained scope to personal use and stopped optimizing for broad configurability.
  • Three habits made progress compounding: replacing fallback tools, recording every annoyance, and fixing painful issues immediately.
  • The broader lesson is that product quality emerged from sustained daily usage pressure, not a one-shot architectural design.

4. AI-powered apps struggle with long-term retention, new report shows

  • RevenueCatโ€™s dataset suggests AI labeling helps top-of-funnel monetization but does not automatically create durable subscription value.
  • AI apps underperform non-AI apps on long-horizon retention while also showing higher refund volatility.
  • Category mix is uneven: AI penetration is high in photo/video apps and low in gaming, travel, and business apps.
  • The practical implication is that AI app teams may need stronger habit loops and clearer ongoing utility to offset churn risk.

5. Meta acquired Moltbook, the AI agent social network that went viral because of fake posts

  • Meta folded Moltbook into MSL, signaling ongoing interest in agent-to-agent interaction surfaces and discovery layers.
  • Moltbookโ€™s virality came from public fascination and fear around autonomous-seeming agent behavior.
  • The incident also showed how weak identity/authentication controls can distort public interpretation of โ€œagent behavior.โ€
  • The acquisition appears to be a talent-plus-directional bet rather than a fully mature product integration.

6. most people suck at growth

  • Audreyโ€™s framework centers on operational discipline: prioritize the core user/revenue metric and remove side quests.
  • The thread repeatedly contrasts โ€œdoing the thingโ€ with planning theater, arguing most teams underinvest in execution volume.
  • It treats growth as a quantitative system: funnel math, sample size, conversion tracking, and repeated iteration.
  • A notable argument is that social visibility can be directionally helpful but is not equivalent to true distribution competence.

7. I was interviewed by an AI bot for a job

  • The Verge segment examines a growing hiring workflow where candidates first interact with AI interview avatars.
  • Claimed upside is throughput and consistency, but the report stresses that model bias and evaluation fairness are unresolved.
  • The hands-on trial found meaningful discomfort and weaker rapport versus human interviewers.
  • The piece frames this as a real-world UX and trust problem, not just a model-performance benchmark.

8. Codex, File My Taxes. Make No Mistakes.

  • The case study documents an end-to-end agent workflow: contextual briefing, guided fact discovery, and structured tax knowledge capture.
  • Codex produced a rough estimate within 5% early, then generated a custom tax engine and fillable-form outputs for the userโ€™s scenario.
  • When an accountant estimate came in roughly $20k lower, Codex identified a likely omitted adjustment-escrow payment.
  • After reconciliation, the accountant revised numbers to near-match Codex, reinforcing the value of agent-assisted auditability.

9. The State of Consumer AI. Part 2: Engagement and Retention

  • The essay argues market-share leadership is less important than habit formation, with engagement/retention as the key durability signals.
  • It highlights ChatGPTโ€™s step-change in engagement and retention relative to both AI peers and many enterprise benchmarks.
  • The reported โ€œsmile curveโ€ retention pattern is framed as evidence that product iteration is reactivating lapsed users.
  • The strategic takeaway is that compounding usage habit raises switching costs and narrows challengersโ€™ displacement window.