Changelog

Log of all wiki changes.

• 2026-04-06: Maintenance: Recommended Reading + Search Index. Updated recommended-reading from 21 to 45 sources. Added: JTBD, positioning, strategic narrative, growth loops, 4 Cohen essays, Cold Start Problem, SaaS Playbook, developer-facing startup, marketing examples, AI evals, audience-first, calm company fund, right kind of stubborn, first 1000 users. Reorganized by-topic structure. Added 4 new books to bookshelf. Rebuilt FTS5 search index (200 documents). Rebuilt backlinks (1,607 links).

• 2026-04-06: Major rewrite: Case Study Comparison — expanded from 7 companies to all 19 case studies. New master table, “Four Eras” framing, expanded every framework comparison, 2-failure analysis, updated AI-era shift with Lovable/Cursor/Midjourney, 5 counterintuitive findings.

• 2026-04-06: Major enrichment: Perplexity AI case study — expanded from 14 sources with 8 new sections. Added: (1) Positioning deep-dive mapping “answer engine” to Dunford’s 5-component canvas and Raskin’s strategic narrative; (2) Advertising experiment timeline — full history of sponsored questions, $20K of $34M revenue, why they killed it, Ipsos survey data; (3) Six growth loops mapped to growth-loops framework (curiosity, shareable knowledge, freemium, AI data, multi-platform, hype/media); (4) Publisher controversy — Forbes 48% paraphrasing, Wired hidden IP address, robots.txt violations, Cloudflare findings, NYT/Dow Jones/Chicago Tribune lawsuits, revenue-sharing response; (5) International expansion — India as #1 market, Airtel 360M subscriber deal, 640% MAU growth, $400M India investment; (6) Distribution partnerships table — Samsung, Motorola, SoftBank, Deutsche Telekom, Airtel, PayPal/Venmo, Firefox, Snapchat with reach and status; (7) User metrics table — 85% first-use return, 90% 30-day retention, 4.8/5 satisfaction, 97% source accuracy, 11-min sessions; (8) Competitive landscape 2025-2026 — vs ChatGPT ($100M ad revenue), vs Google (25% AI Overviews), vs Copilot, market share goals. Raw research compilation updated to 14 sources. Source summary enriched.

• 2026-04-06: New CASE STUDY: Perplexity AI — the answer engine vs Google. Source #45. The most credentialed AI founding team ever (ex-OpenAI + DeepMind + Google + FAIR + Databricks co-founder). Launched one week after ChatGPT (Dec 2022), chose to fight Google directly with citation-first RAG architecture. $200M+ ARR, 45M MAU, $20B+ valuation, ~$1.7B raised across 11 rounds. 52 employees at $3B valuation. Dropped all advertising Feb 2026 — betting trust beats ads. Model-agnostic (uses GPT, Claude, Gemini, own Sonar) with moat in retrieval/ranking/synthesis. Bold distribution: Comet browser, $34.5B Chrome acquisition bid, Motorola/Samsung hardware deals. 19th case study, 5th AI-era. Focus Area 1 (AI-Native).

• 2026-04-06: Major expansion: Growth Loops — added 7 detailed company growth loop deep-dives with step-by-step mechanics: Figma (collaboration loop, viral coefficient >1, for every 1 designer ~2 non-designers pulled in, 70% of enterprise deals started bottom-up), Notion (template-community loop, 95% organic traffic, 226K Reddit members, community creates and sells templates with Notion taking $0), Superhuman (4 interlocking loops: signature, seamless referral, status/waitlist, social proof; 450K+ waitlist; early users deliberately selected as founders/VCs), Slack (cross-organizational spread: members change jobs and bring Slack; 3.2 new members per user in 30 days), Pinterest (Casey Winters SEO loop, 40M→200M+, SEO users had higher retention than social), HubSpot (content-to-customer, coined “inbound marketing” category), AI Data Flywheel (Tesla 300M+ miles, ChatGPT 1M users in 5 days, Perplexity 780M queries). Added Growth Loops vs Flywheels (Jim Collins) section: flywheels = loops + competitive advantages; HQ Trivia cautionary tale (2M+ DAUs, zero advantages, collapsed); Amazon’s three interlocking loops. Added Andrew Chen’s contributions: viral loops as induction proofs, retention as secret weapon for viral growth, Cold Start Theory connection (atomic network as ignition point for loops). Focus Area 2 (Distribution & GTM).

• 2026-04-05: New source + concept: Growth Loops (Brian Balfour, Casey Winters, Kevin Kwok, Andrew Chen) — source #44. Fills a major gap: the wiki covered AARRR pirate metrics and distribution channels but had no dedicated treatment of growth loops, the framework that replaces funnels as the correct mental model for how companies grow. Ingested Balfour’s “Growth Loops Are the New Funnels” (2018), the Four Fits framework ($100M+ growth requires Market-Product, Product-Channel, Channel-Model, and Model-Market fit), Product-Channel Fit essay (“products are built to fit with channels, channels do not mold to products”), and Casey Winters’ content loop work at Pinterest (40M to 200M+ users via SEO loops after Facebook killed API distribution) and Grubhub (30K users to $10B IPO via content loops). Created comprehensive concept article covering: the 3 problems with funnels (no compounding, too micro, creates silos), 4 loop types (viral with 4 subtypes, content with 2 dimensions, paid with inherent decline, sales), the Four Fits framework, Smooth Sailers vs Tugboats, Winters’ 5-step content loop process, kindle vs fire strategy, 9 company loop maps (Pinterest, LinkedIn, HubSpot, Slack, Dropbox, SurveyMonkey, Eventbrite, Airbnb, Salesforce), Blue Apron anti-pattern ($400 CAC / <$200 value / 72% churn), the Universal Growth Loop, connections to network-effects/PLG/distribution/moats/retention, and a 5-step diagnostic for identifying your growth loop. Focus Area 2 (Distribution & GTM).

• 2026-04-06: New FAILURE CASE STUDY: Fast — how to burn $125M in two years. Source #43. The purest cautionary tale: one-click checkout startup raised $124.5M (led by Stripe), grew to 480 employees, generated $600K annual revenue ($166 spent per $1 earned). Died in 6 days after The Information published the real numbers. Maps to: unit-economics (revenue per order $6, burn $10M/month, needed 200x more orders), PMF (product nobody needed — Apple Pay, Shop Pay already free), premature scaling (480 employees on $600K revenue), ZIRP fundraising trap, founder-psychology (Domm Holland’s pattern: Tow.com.au collapse, data selling scandal). Includes Fast vs WeWork comparison table. $1M Chainsmokers concert = 1.7x annual revenue. 2nd failure case study, 17th total. Fills research strategy gap for failure cases.

• 2026-04-06: New CASE STUDY: Notion — from Kyoto noodles to $600M ARR. Source #42. The patience and craft case study: Ivan Zhao (immigrant founder from Urumqi, China) rebuilt the product 4 times over 6 years before real traction. Near-death in 2015 — laid off everyone, borrowed $150K from mother, moved to Kyoto with co-founder Simon Last, rewrote everything on React while living on instant noodles. Key pivot: “sugar-coating the broccoli” — wrapping a no-code app builder in familiar notes/docs/wiki metaphors. Revenue: $3M (2019) → $600M ARR (Dec 2025), 19x growth in 4 years. 27 employees serving 1M users at $800M valuation. AI as enterprise accelerator: Notion AI crossed 50% customer adoption, pulled product upmarket. 100M+ users, 80% non-US. 16th case study. Focus Area 2 (Distribution & PLG).

• 2026-04-05: New concept: Decision Making Under Uncertainty — the meta-skill. Fills a real gap: decisions as a practice had no dedicated treatment despite being the single most compounding skill a founder can develop. Covers Bezos’s Type 1 vs Type 2 (one-way vs two-way doors), the 70% rule, expected value thinking (decision quality ≠ outcome quality), pre-mortems (Gary Klein), reference class forecasting (Kahneman/Mauboussin), disagree and commit, believability-weighted decisions (Dalio), strong opinions loosely held, pre-commitment devices for emotional decisions, 7 founder-specific cognitive biases, and One-Way Door + Two-Way Door checklists. Key reframe: speed should be a function of reversibility, not importance — the most common mistake is applying Type 1 process to Type 2 decisions, which feels responsible but is actually procrastination.

• 2026-04-05: New concept: Founder-Led Sales — the discipline, not just the phase. Synthesized from existing wiki sources (Rabois, Seibel, Blank, PG, Kahl, Walling, Cohen) into a single home. Covers: why founders must sell early (product fluidity, listening depth, pricing authority), the 7-step discipline (manual target list → founder cold email → concierge offer → discovery before demo → 3Ws framework → aggressive disqualification → pipeline tracking), canonical stories (Collison Installation, Kit’s concierge migration, Airbnb photographers, Linear’s 14-month beta, Superhuman onboarding), the JTBD Switch Interview overlap, pricing rules, transition threshold (50 demos at 20%+ win rate), and 10 common mistakes. Explicitly reframes founder-led sales as a learning apparatus — the output is product knowledge, not just revenue. Case studies now map directly to the framework.

• 2026-04-05: New source + concept: Jobs-to-be-Done (Clayton Christensen) — source #41. Fills a massive gap — JTBD had zero prior coverage despite being the foundational product framework of the last 25 years. Ingested Christensen’s Competing Against Luck (2016), the canonical milkshake story, Bob Moesta’s Switch Interview methodology and Four Forces of Progress, Intercom’s Job Story format, Alan Klement’s progress framing, Tony Ulwick’s ODI. Created dedicated concept article covering: the “hired to make progress” insight, three dimensions (functional/emotional/social), Four Forces (Push + Pull > Anxiety + Habit), Job Story format (“When [situation], I want to [motivation], so I can [outcome]”), Switch Interview technique, JTBD vs personas, three practitioner schools, 10 common mistakes, and applied JTBD statements for Linear/Kit/Lovable/Basecamp case studies. This framework is explicitly upstream of positioning, niche-selection, PMF, ideation, pricing, and competitive strategy.

• 2026-04-05: New source: Andy Raskin — Strategic Narrative (source #40). Ingested “The Greatest Sales Deck I’ve Ever Seen” (2016 Zuora essay) + his follow-up work on Drift, old game / new game framing, and the CEO-authorship rule. Added substantial new section “The Strategic Narrative: Raskin’s 5 Steps” to the existing pitching article: (1) Name a big change in the world, (2) Show winners/losers, (3) Tease the promised land, (4) Features as magic gifts, (5) Evidence last. Explicitly frames Raskin and Dunford as sequential/complementary: Dunford answers “what are we?” Raskin answers “what story is the buyer living inside?” Key insight threaded through: change-first openings beat problem-first openings because problems make prospects defensive while external change bypasses resistance.

• 2026-04-05: New source + concept: April Dunford — Positioning (source #39). Ingested Dunford’s Obviously Awesome (2019) + Sales Pitch (2023) methodology. Created dedicated concept article that fills a real gap: positioning was implicit across 30+ wiki articles but had no dedicated home. Covers the 5-component canvas (competitive alternatives → unique attributes → value + proof → best-fit customers → market category), the order-matters principle, positioning vs messaging distinction, three category options (subcategory framing is her preferred path), 10-step process, 10 common mistakes, the Sales Pitch structure, and applies the framework to Linear, Kit, Lovable, and Basecamp case studies. Positioning is upstream of messaging, branding, and sales pitch — fix this first.

• 2026-04-05: New concept: Niche Selection — the discipline of narrowing aggressively. Synthesizes Thiel, PG, Kahl, Walling, Fried. Six-part diagnostic (naming test, sentence test, watering hole test, not-for-you test, urgency test, willingness-to-pay test), seven quality characteristics of good niches, the beachhead strategy, when to expand, 8 common mistakes, and the niche-down exercise. References all 15 case studies as applied examples. Fills a gap: the concept was referenced implicitly across ~20 articles but had no dedicated home. Kit’s turnaround (just written) is the flagship example.

• 2026-04-05: New CASE STUDY: Kit (ConvertKit) — the reference case for bootstrapping through near-death. Nathan Barry founded ConvertKit Jan 2013 as public “Web App Challenge.” Flatlined for 22 months, bottomed at $1,207 MRR Oct 2014, Hiten Shah told him to shut it down. Instead Nathan injected $50K savings, killed his profitable $250K/yr course business, went door-to-door emailing bloggers with concierge migration (“I’ll do it for you for free”). Pat Flynn migration early 2015 was the watershed. 30% recurring affiliate program drove +637% YoY in 2016. Craft + Commerce conference intentionally loses $60-100K/yr as community moat. Turned down hundreds-of-millions Spotify acquisition in 2021. Rebranded to Kit Oct 2024 (after a failed Seva rebrand in 2018). Today: $43M ARR, 99.5% NDR, 100% bootstrapped, profitable every year. ~49K paying customers, 600K+ total creators. Focus Area 3 (Bootstrapping & Revenue-First). 15th case study.

• 2026-04-05: New CASE STUDY: Lovable — the most extreme AI-native growth story on record. Founded Nov 2023 in Stockholm by Anton Osika (ex-CERN/Sana/Depict, creator of 54K-star GPT Engineer) + Fabian Hedin. Launched publicly Nov 2024 after two failed launches. Hit $10M ARR in 60 days with 15 employees, $100M ARR in 8 months (fastest in history), $400M ARR by Feb 2026 at ~146 employees ($2.77M ARR/employee). $6.6B Series B valuation Dec 2025. Mapped to: ai-era-entrepreneurship (ultimate proof), leverage (Naval’s 4 types maxed out), distribution (zero paid ads to $100M), PLG (remix button + Launched gallery), international-expansion (the anti-Bay-Area bet), moats (brand + model orchestration + workflow), and retention risk (the 80/20 trap). Focus Area 1 (AI-Native Startups). Non-US founders. Wiki now at ~130 articles, 14 case studies.

• 2026-04-05: New CASE STUDY: Linear — $1.25B valuation on $35,000 of lifetime paid marketing spend (0.5% of revenue). Mapped to distribution (the $35K growth engine), do-things-that-dont-scale (14 months of handpicked beta cohorts at ~10/week), focus (the list of things Linear refuses to do), moats (craft, speed, opinionated defaults as moats), PLG (charged from day one, no generous freemium), hiring (paid 1-week work trials), Linear Method (8 principles, Cycles/Triage/Projects). Contrarian on 10+ conventional SaaS wisdom axes — all vindicated by results. Profitable since 2021, negative lifetime burn. Focus Area 2 (Distribution).

• 2026-04-05: New source — Building in Public: The Debate (source #38). First wiki entry presenting a genuine current-debate (2019-2024 era vs 2025-2026 shift). Added as the 9th tension in where-the-experts-disagree.md: Build in Public vs Go Dark. Resolution by stage (early = public) and moat type (execution/network = stay public, insight = go dark). Counter-examples Nick Moore (PopClip) and Danny Lin (OrbStack). Focus Area 2 (Distribution).

• 2026-04-03: Ingested and compiled first source — Marc Andreessen’s “The Only Thing That Matters” (2007). Created concept article for product-market-fit (draft) and source summary (complete). Initialized all index files.

• 2026-04-03: Bulk seeding — ingested and compiled 3 additional sources: Paul Graham “Do Things That Don’t Scale”, Sam Altman “Startup Playbook”, Steve Blank “Customer Development”. Created 7 new draft concepts (do-things-that-dont-scale, customer-development, execution, fundraising, hiring, growth, user-acquisition) and 5 new stubs (lean-startup, minimum-viable-product, unit-economics, company-culture, competitive-strategy, founder-psychology). Enriched existing stubs. All indexes rebuilt.

• 2026-04-03: Ingested + compiled 2 new sources: Eric Ries “Lean Startup Principles”, Fractl “Why Startups Fail: 193 Post-Mortems”. Enriched 3 stubs to drafts (lean-startup, minimum-viable-product, pivoting — now with 9 famous pivot examples). Created new concept article: startup-failure-modes (draft) with failure data tables. Wiki now at 23 articles.

• 2026-04-03: Ingested + compiled 2 more sources: Paul Graham “How to Get Startup Ideas”, First Round Review “Leslie’s Compass GTM Framework”. Created 3 new concepts: ideation (draft, with Well vs Sitcom test and Schlep Blindness), go-to-market-strategy (draft, with Leslie’s 7 dimensions), business-models (draft, 6 model types). Enriched 3 stubs to drafts: founder-psychology (mental health data), unit-economics (CAC/LTV/payback), company-culture (Altman’s hire/fire/promote framework). Only 2 stubs remain. Wiki now at 27 articles.

• 2026-04-03: Ingested Thiel “Zero to One” (monopoly characteristics, last mover advantage). Enriched last 2 stubs: competitive-strategy (Thiel’s 4 monopoly characteristics + Altman’s “ignore them”), user-acquisition (3Ws framework, founder-led sales phases, channel table). New concepts: cofounder-dynamics (equity splits, vesting, breakup prevention). First synthesis article: “The Startup Lifecycle” mapping 6 phases from ideation to endurance. Zero stubs remain. Wiki now at 30 articles.

• 2026-04-03: Ingested PG’s “18 Mistakes That Kill Startups.” Created 2 new concepts: legal-foundations (Delaware C-Corp, SAFE notes, 83(b) elections, vesting, essential legal steps), pricing-strategy (value-based pricing, 10-5-20 rule, B2B vs B2C). All core topics from specs/subject.md now have coverage. Wiki now at 33 articles.

• 2026-04-03: Ingested Superhuman’s PMF Engine (First Round Review). PROMOTED product-market-fit to COMPLETE — now includes Sean Ellis 40% test, the 4-step PMF engine (22%→58%), and Rachleff’s value/growth hypothesis framework. Second synthesis article: “The Validation Stack” — maps 4 layers from idea hypothesis through proven PMF. Wiki now at 36 articles, first concept promoted to complete.

• 2026-04-03: Ingested Livingston’s “What Goes Wrong” (467 YC startups, tunnel of monsters). New concept: scaling (blitzscaling 5 stages, scaling paradox, when to/not to blitzscale). Third synthesis article: “Building the Team” — from cofounders through culture to scaling teams, with comparison tables. Wiki now at 39 articles.

• 2026-04-03: Ingested 2 sources: PG’s “Default Alive or Default Dead?” and a16z’s “Dynamics of Network Effects.” New concept: network-effects (4 types, commoditized vs differentiated supply, breakdown conditions). Fourth synthesis: “The Money Playbook” — ramen profitability to unit economics to pricing to fundraising to the death spiral. Wiki now at 43 articles.

• 2026-04-03: Ingested 2 sources: Rob Fitzpatrick’s “The Mom Test” and PG’s “Founder Mode” (2024). PROMOTED customer-development to COMPLETE (added Mom Test interview framework with good/bad question table). PROMOTED execution to COMPLETE (added founder mode vs manager mode section). New concept: founder-mode (skip-level meetings, selective depth, when to delegate). Wiki now at 46 articles, 3 concepts at complete status.

• 2026-04-04: Ingested Keith Rabois’ “How to Operate” (Stanford lecture). New concept: operations (editing metaphor, barrels vs ammunition, delegation matrix, anomaly principle, radical transparency). PROMOTED do-things-that-dont-scale to COMPLETE (added transition guidance, real founder stories from Livingston). Wiki now at 48 articles, 4 concepts at complete.

• 2026-04-04: PROMOTED 3 more concepts to COMPLETE: fundraising (added Lines Not Dots investor relationship strategy, default alive/dead framework, fundraising danger zone from PG’s 18 mistakes), hiring (added barrels vs ammunition from Rabois, the hiring trap), growth (added network effects engine, default alive growth test). 7 core concepts now complete.

• 2026-04-04: PROMOTED 3 more to COMPLETE: pivoting (added pivot data, how to pivot well, Ries’ pivot-or-persevere decision framework), startup-failure-modes (added PG’s 18 mistakes mapped to categories, Livingston’s tunnel of monsters), ideation (added Thiel’s contrarian framework and secrets, idea traps from PG). 10 core concepts now complete.

• 2026-04-04: PROMOTED all remaining 20 drafts to COMPLETE. Every article in the wiki is now at complete status. 47 articles, 0 drafts, 0 stubs. The knowledge base has achieved full first-pass coverage of entrepreneurship.

• 2026-04-04: Ingested Fried’s bootstrapping philosophy (Lenny’s Newsletter). Two new concepts: bootstrapping (the anti-VC path, ramen profitability, 5 famous bootstrapped companies, bootstrapper’s paradox), startup-metrics (AARRR pirate framework, vanity vs actionable metrics, OMTM, Rabois’ paired metrics, stage-appropriate metrics). Wiki now at 51 articles with contrarian perspectives.

• 2026-04-04: Ingested Ben Horowitz’s “Wartime/Peacetime CEO” (a16z). New concept: wartime-peacetime-ceo (17-contrast table, famous examples, startup wartime default, transition problem). Fifth synthesis: “The Leadership Modes” — maps 3 leadership frameworks (Horowitz, Graham, Rabois) to startup lifecycle phases, identifies determination as the meta-skill. Wiki now at 54 articles.

• 2026-04-04: First CASE STUDY: Airbnb — from air mattresses to $100B. Maps the entire Airbnb journey to wiki frameworks: ideation (organic idea), customer-development (staying with 24 hosts), do-things-that-dont-scale (door-to-door photography), PMF (trust as bottleneck), fundraising (cereal boxes), founder-mode (Chesky studying Jobs), wartime/peacetime (4 war/peace cycles). New article type for the wiki.

• 2026-04-04: Second CASE STUDY: Stripe — the schlep nobody wanted. Maps Stripe’s journey to wiki frameworks: ideation (Schlep Blindness as moat), do-things-that-dont-scale (Collison installation), competitive-strategy (zero to one vs PayPal), product-market-fit (developer love, 7 lines of code), fundraising (PayPal founders investing in competitor), growth (platform network effects), scaling (startup tool to financial infrastructure). Wiki now at 55 articles.

• 2026-04-04: New concept: distribution (Thiel’s spectrum from complex sales to viral, power law of channels, the dead zone, distribution as moat). New article: “Start Here” reading guide — 30-min essentials, 5 learning paths by stage (Validation, Growth, Finance, People, Leadership), complete source index. Wiki now at 57 articles.

• 2026-04-04: Maintenance: fixed 5 tag inconsistencies, rebuilt FTS5 search index (82 docs), updated health report. New concept: pitching (essential pitch structure, investor/customer/recruit pitching, the one-line test, common mistakes, the anti-pitch for bootstrappers). Wiki now at 58 articles.

• 2026-04-04: New article: “The Entrepreneur’s Cheat Sheet” — entire wiki distilled into one page (6 phases table, 10 commandments, key numbers, frameworks wall, failure causes). Rendered 3 Marp slide decks: Startup Lifecycle, Validation Stack, Money Playbook. First visual outputs in wiki/outputs/slides/. Wiki now at 59 articles.

• 2026-04-04: v1.2 RELEASE — Depth + AI era: added product-led-growth, technical-decisions, marketplace-dynamics, moats (0-21 scoring), retention-and-churn, Cursor case study ($0→$1B ARR in <24mo), Garry Tan source (#21). 10 Marp slide decks. 84 articles, 62K+ words, 960+ links, 45 concepts, 6 case studies.

• 2026-04-04: v1.1 RELEASE — Post-v1.0 depth additions: product-led-growth, technical-decisions, marketplace-dynamics, moats (with 0-21 scoring framework), retention-and-churn. Updated Start Here with all new articles. Rebuilt search index (115 docs). Wiki: 82 articles + 7 slides, 58K+ words, 882 links, 45 concepts.

• 2026-04-04: v1.0 MILESTONE — All planned content complete. 77 articles + 7 slides, 53K+ words, 800+ links, 20 sources. Updated Start Here with all expansion articles. Rebuilt search index (110 docs). All 10 expansion topics covered. Zero content issues.

• 2026-04-04: New article: “AI-Era Entrepreneurship: What Changes and What Doesn’t” — maps every wiki framework against the AI shift. What changes: minimum viable team shrinks to 1, experimentation cost drops to zero, distribution becomes THE moat, bootstrapping becomes default, dead zone disappears. What doesn’t: PMF still matters, taste/judgment irreplaceable, customer understanding requires humans, determination still wins. Includes Old vs New Playbook comparison table.

• 2026-04-04: New article: product-development (discovery vs delivery, 4 risks, empowered teams, product by stage).

• 2026-04-04: New article: “The Founder’s Operating System” — practical daily/weekly/monthly/quarterly rhythms extracted from all frameworks. Includes founder mode checklist, decision framework table (7 decisions mapped to frameworks), and anti-pattern dashboard (7 warning signals with diagnoses). The most actionable article in the wiki.

• 2026-04-04: Quality pass: updated Start Here guide with Slack, WeWork, contrarian takes, pitching, distribution, bootstrapping. Updated Cheat Sheet with WeWork anti-pattern checklist and full case study links. Rebuilt FTS5 search index (90 documents). All guide articles now reference complete wiki.

• 2026-04-04: First FAILURE case study: WeWork — how to lose $47B. Maps every anti-pattern: broken unit economics ($1.9B loss on $1.8B revenue), premature scaling (blitzscaling without network effects), founder psychology (every strength has a shadow), too much capital ($10B+ removed discipline), no moat (zero of Thiel’s 4 monopoly characteristics), governance failure, “Community Adjusted EBITDA” as the ultimate made-up metric. Includes Airbnb counter-example comparison.

• 2026-04-04: New article: “Where the Experts Disagree” — 7 tensions between sources (VC vs bootstrap, founder vs manager mode, competition ignore vs avoid, fast vs careful, hire fast vs slow, plans vs no plans, market vs team). Each with resolution synthesis. The meta-lesson: “there is no universal startup advice.”

• 2026-04-04: Third CASE STUDY: Slack — the greatest pivot in SaaS history. Butterfield’s second pivot-into-gold (after Flickr). Maps to: pivoting (feature pivot from Glitch’s internal tool), PMF (8K beta requests day 1, fastest to $1M ARR), distribution (bottom-up viral B2B), competitive-strategy (consumer UX in enterprise, 10x better), network-effects (within-team + ecosystem), founder-psychology (pivoting twice). Wiki now at 60 articles.