DIY sources

Every number in every episode has a source. Here they are, plus the full "do the opposite" list for each episode. Weak or contested studies are marked. Found a mistake? DM @darpan.sah and I'll correct it.
EP05अपना करियर बर्बाद कैसे करें

The fix (10 + 1)

  1. Block one "closed door" hour a day for deep work; answer messages at fixed times, in one go.
  2. Ask one question in every meeting. People notice you far less than you think.
  3. Treat sleep as part of the deadline, not its enemy.
  4. Talk to people at the edge of your circle: old colleagues, friends of friends.
  5. Once a month, message one old contact. No ask, just hello.
  6. Do your research, then ask politely, once: "Is there any flexibility here?"
  7. Don't hunt for your passion, grow it. Don't quit the moment it gets hard.
  8. Count results, not hours.
  9. Learn one new skill every year, close to your work.
  10. Learn the next level's skills (managing people, teaching, deciding) before the promotion.
  11. Bonus: don't avoid failure. Build a system to learn from it.

Sources

  • Attention residue: Sophie Leroy (2009), Organizational Behavior and Human Decision Processes 109(2). abstract
  • Spotlight effect: Gilovich, Medvec & Savitsky (2000), J. of Personality and Social Psychology 78(2).
  • Sleep loss vs alcohol: Williamson & Feyer (2000), Occupational & Environmental Medicine, UNSW. paper (39 people)
  • Weak ties: Rajkumar et al. (2022), Science 377 (20M+ LinkedIn users, 5 years).
  • Dormant ties: Levin, Walter & Murnighan (2011), Organization Science. abstract (Executive MBA students)
  • Salary negotiation: Marks & Harold (2011), J. of Organizational Behavior; $5,000 figure from co-author Michelle Marks, George Mason University.
  • "Find your passion": O'Keefe, Dweck & Walton (2018), Psychological Science. ⚠️ mindset research has replication debates; one study.
  • Working hours: John Pencavel, Stanford (2014), IZA DP 8129; WHO-ILO (2021), long working hours.
  • Skills changing: WEF Future of Jobs Report 2025 (estimate from an employer survey). Kodak: milestones, IEEE Spectrum, SEC 8-K (2012).
  • Peter Principle: Benson, Li & Shue (2019), Quarterly Journal of Economics. NBER Digest
  • Near-miss scientists: Wang, Jones & Wang (2019), Nature Communications 10:4331. (scientists, not every career)
  • Founders' age: Azoulay, Jones, Kim & Miranda (2020), AER: Insights. NBER
EP04एक बचपन को कैसे बर्बाद करें

The fix (7 + 1)

  1. Lower your voice, not your standards: firm and calm beats loud.
  2. No hitting. Use clear rules and consequences instead.
  3. Praise the effort ("you worked hard"), not the label ("you're a genius").
  4. Make small promises and keep them. Reliability teaches patience.
  5. Don't fight in front of kids; if it happens, let them see you make up.
  6. Screens: none under 1, max an hour a day at 2 to 4 (WHO). Comfort with you, not a phone.
  7. Protect free play every day. It's not wasted time.
  8. Bonus: be present. Answer their looks, sounds and smiles.
  9. And: be (or find) one trusted adult in a child's life. That one bond changes outcomes.

Sources

  • ACE Study: Felitti, Anda et al. (1998), American J. of Preventive Medicine 14(4). abstract
  • 1M+ connections/second: Harvard Center on the Developing Child, Brain Architecture
  • Yelling: Wang & Kenny (2014), Child Development 85(3). Pitt
  • Spanking: Gershoff & Grogan-Kaylor (2016), J. of Family Psychology (75 studies, 160,927 children; correlational). UT Austin. Sweden ban 1979: Library of Congress
  • Praise: Mueller & Dweck (1998), JPSP 75(1). paper
  • Broken promises: Kidd, Palmeri & Aslin (2013), Cognition 126(1), Rochester (28 children).
  • Sleeping babies hear fights: Graham, Fisher & Pfeifer (2013), Psychological Science. paper (small sample: 20)
  • Phones: Haidt, The Anxious Generation (2024); NIMH data; counterpoint: Odgers (2024), Nature. WHO (2019) screen guidance.
  • Play: Yogman et al. & AAP (2018), Pediatrics 142(3).
  • Romania / BEIP: Sheridan et al. (2012), PNAS. Still Face: Tronick et al. (1978).
  • Kauai study: Werner & Smith (2001), Journeys from Childhood to Midlife, Cornell University Press.
EP03बिना युद्ध के एक देश को कैसे बर्बाद करें

What thriving countries did instead

  1. Print money only as fast as the economy grows; keep the central bank independent.
  2. Build institutions no ruler can pocket: courts, elections, audits.
  3. Treat the treasury as public money, with open accounts.
  4. Diversify; never bet the whole country on one resource.
  5. Give talent a reason to stay.
  6. Make big changes slowly, after testing them.
  7. Borrow for things that pay back, and keep debt sustainable.
  8. Most important: tell people the truth, especially bad news.

Sources

  • Adam Smith on "peace, easy taxes, and a tolerable administration of justice" (as quoted by Dugald Stewart, 1793).
  • Zimbabwe: Steve Hanke's estimate, monthly inflation ~79.6 billion % in Nov 2008. Johns Hopkins Magazine
  • Nogales: Acemoglu & Robinson, Why Nations Fail (2012).
  • Marcos: listed in Guinness World Records from its 1987 edition ($5 to 10 billion). ⚠️ Guinness took the entry down for review in 2022; no outcome published yet. Vera Files
  • Nauru: CIA World Factbook · Venezuela, ~7.9 million refugees and migrants (Dec 2024): UNHCR
  • Sri Lanka fertiliser ban (April 2021): Foreign Policy · Argentina's ninth default (May 2020): CNBC · Greece lost ~25% of GDP: Greece at the UN General Assembly (2008 to 2012 alone ≈ 20%)
  • Chernobyl: Mikhail Gorbachev, "Turning Point at Chernobyl", Project Syndicate (2006).
  • 2024 Nobel Prize in Economics (Acemoglu, Johnson, Robinson) "for studies of how institutions are formed and affect prosperity": nobelprize.org
EP02एक रिलेशनशिप को कैसे बर्बाद करें

The fix (7 + 1)

  1. Complain about the problem, never the person ("I felt…" not "you always…").
  2. Swap eye-rolls for appreciation; say thanks out loud.
  3. Turn toward their small bids: look up, answer, go to the window.
  4. Phone face down when they're talking.
  5. Apologise without "but".
  6. Overwhelmed? Say "give me 20 minutes" and come back, instead of going silent.
  7. Aim for 5 positives for every negative, even in a fight.
  8. Most important: small things, often.

Sources

  • John Gottman: Four Horsemen, contempt as the strongest divorce predictor, the 5:1 ratio, "small things often" (The Gottman Institute).
  • Bids 86% vs 33% (newlywed study, 6-year follow-up): Gottman Institute; also The Relationship Cure (2001). One study; shows association, not cause.
  • Phubbing 46.3% / 22.6%: Roberts & David, Computers in Human Behavior (2016). Baylor University (453 US adults)
  • Harvard Study of Adult Development (since 1938): Harvard Gazette; Waldinger & Schulz, The Good Life (2023).
  • Esther Perel on relationship quality and life quality.
EP01एक ब्रांड को कैसे बर्बाद करें

The fix (7 + 1)

  1. Promise less, deliver more.
  2. If you must shrink a product, say so. Customers notice.
  3. Answer complaints fast; a fixed problem builds loyalty.
  4. Protect what people recognise you by.
  5. Talk with your customers, not at them.
  6. Look after your team; they look after your customers.
  7. Never lie. It always costs more later.
  8. Most important: remember who you are and why people trusted you.

Sources

  • 81% say "I must be able to trust the brand to do what is right": Edelman Trust Barometer Special Report: In Brands We Trust? (2019)
  • Toblerone UK (2016): 400g bar became 360g with wider gaps, same pack. ITV News
  • United Breaks Guitars: Dave Carroll's song after United damaged his guitar (2009).
  • Tropicana (2009): unit sales fell 20% in ~2 months after the redesign (Ad Age / IRI data). Bloomberg
  • Gillette ad (Jan 2019); P&G's $8 billion Gillette write-down (Jul 2019). P&G cited currency, competition and less shaving, not the ad. Yahoo Finance
  • Service-Profit Chain: Heskett, Jones, Loveman, Sasser & Schlesinger, Harvard Business Review.
  • Volkswagen (2015): ~11 million cars with the cheat software; VW put the cost at €31.3 billion by 2020 (Reuters). Business Insurance
  • Boeing 737 MAX: two crashes, 346 lives. US House committee report (2020); Peter Robison, Flying Blind (2021).
  • Retention: Fred Reichheld, Bain & Company, "Prescription for cutting costs": "in financial services… a 5% increase in customer retention produces more than a 25% increase in profit." ✏️ Correction: the video said "25 to 95%". This Bain paper gives "more than 25%"; the 95% end is widely quoted but isn't in it.
Brand collaborations: darpansah@gmail.com · Instagram @darpan.sah
Not medical, legal, financial or parenting advice. Based on published research and reporting.

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