MModern Wisdom
← All episodes
Rory Sutherland09 February 2023

19 Of Human Behaviour's Weirdest Quirks - Rory Sutherland - #587

1Frameworks
17Insights

Listen

Frameworks in this episode

Insights & moments

The myth-busts, hot takes, explainers, and tools worth keeping.

Myth Buster· 2

Myth Buster

When ChatGPT Invented Academic Papers That Don't Exist

Sutherland relays a colleague's test: ChatGPT gave an excellent description of cognitive biases, but when asked for academic sources it fabricated non-existent papers, attaching real (and some irrelevant) academics' names. He argues it doesn't 'know the truth' — it optimises for plausibility.

  • The model produced convincing bias explanations but invented the citations wholesale
  • It attached real academics — including one who studied magnetic resonance, unrelated to the field
  • It answers 'how do I say this plausibly?' rather than 'what is actually true?'
  • Impressive and useful as a curiosity, but not safe as an authority

it merely goes, how can I say this in a way that looks plausible?

Rory Sutherland
#ai#chatgpt#epistemics
Myth Buster

Slower Recall in Middle Age Is More Stored Knowledge, Not Decline

Drawing on Algorithms to Live By, Sutherland reframes the classic fear of mental decline: older people are slower to retrieve facts because they know more, so information sits in slower-access storage. He notes happiness is U-shaped, dipping in middle age before rising again.

  • Retrieval slows because accumulated knowledge must be stored in slower-access 'memory'
  • 40s–50s know more than 22-year-olds but extract it more slowly (the University Challenge effect)
  • Many people mistake this for deterioration; the reframe genuinely cheers them up
  • Life satisfaction is U-shaped, lowest in middle age then rising continuously

The reason when you get older that you find it often slower to retrieve information is not because of deteriorating mental faculties, it's because you…

Rory Sutherland
#aging#cognition#wellbeing

Hot Take· 3

Hot Take

The Overlooked Flaw in Supersonic Travel: The Eastbound Leg

Everyone romanticises leaving London and arriving in New York for breakfast, but Sutherland argues the return leg is 'singularly useless'. Time savings also shrink once you count the hours lost getting to and through airports, and supersonic only pays off across a whole network of routes.

  • Westbound feels magical — leave London at 10, arrive NY 8:45 for breakfast
  • Eastbound return wastes a full waking day and forces an awkward early start
  • Most travellers would prefer an overnight flight and waking up in London
  • Airport access time (2.5+ hrs) erodes the in-flight saving; only a route network makes it worthwhile

the time saving is not quite as pronounced with supersonic flight as you might hope

Rory Sutherland
#travel#aviation#systems-thinking
Hot Take

Sutherland's Case That Demonising Nicotine Is a Wasted Human Effort

Sutherland argues nicotine is roughly 'like coffee' and that vaping could save a billion lives globally by displacing smoking. He blames big pharma (not big tobacco) for lobbying against flavours and disposables, and dismisses the 'think of the children' argument as a low-priority worry versus real drugs.

  • The documentary One Billion Lives argues deregulated nicotine delivery could save a billion lives worldwide
  • Big tobacco invested in vaping; big pharma, whose patches failed, played dirty against it
  • Flavours unlike burnt tobacco are precisely what helps people quit cigarettes
  • Evidence points to vaping as a 'gateway out' of smoking, not into it

the demonization of nicotine, as distinct from burning tobacco, has been one of the most extraordinary kind of wasted human efforts

Rory Sutherland
#public-health#harm-reduction#policy
Hot Take

'It Depends': The Case Against Low-Nuance Black-and-White Thinking

Sutherland argues the modern allure of black-and-white thinking ignores that rules change with context — what's fine in a comedy club isn't in a church. He blames an education system that trains people to believe every question has one right answer, when 'it depends' and 'I need more information' are often correct.

  • Reductionist, low-nuance thinking refuses to accept that acceptability is context-dependent
  • Complex systems require weighing several factors, not applying a single rule everywhere
  • The demand to pronounce absolutely on anything, ignoring context, is 'sophomoric'
  • Education wrongly implies there is always one right answer rather than 'it depends'

there's something fundamentally wrong with our education system if it isn't effectively showing people that a very large number of questions should be answered with,…

Rory Sutherland
#thinking#nuance#epistemics

Explainer· 9

Explainer

Why Naming a Water 'Liquid Death' Works as Branding

Sutherland admires the perversity of naming a product the literal opposite of what it is. He ties Liquid Death to the early-90s ethical 'Death Cigarettes' brand and argues brand imagery is consumed as much as the product itself.

  • Calling a still, healthy water 'Liquid Death' with a skull creates a unique, memorable brand position
  • The move echoes Death Cigarettes: black packaging, skull, honesty as differentiation
  • You drink the imagery as much as the drink — associations are as powerful as the reality
  • Perverse, counter-category naming buys attention that literal naming cannot

you're drinking imagery as much as you're drinking a drink, and the associations are as powerful as the reality, essentially

Rory Sutherland
#branding#marketing#positioning
Explainer

Why 4K Barely Beats HD and 60fps Feels Fake

For fast motion your brain assembles the image, so 4K only shows its advantage on slow or static scenes — which is why TV showrooms loop close-ups of ants and jellyfish. Sutherland and Williamson explain the Joe Rogan studio backlash: 60fps shows motion without the natural blur your eyes expect.

  • In fast movement (sport) your brain fills in the image, so 4K adds little over HD
  • Showrooms demo 4K/8K with slow, static subjects because that's where resolution shows
  • Your eyes naturally see motion blur — wiggle your hand and you don't see every position
  • 60fps removes that blur, making footage feel artificial; the Rogan studio was fixed by dropping to 25/30fps

60 FPS is displaying a type of video that your eyes are not used to seeing in the real world, which is what makes it…

Chris Williamson
#perception#technology#video
Explainer

Japanese Musical Roads: Designing Incentives into the Surface

Sutherland cites the Japanese 'road organ' — corrugated strips that play a pleasant tune only if you drive at the legal speed. He contrasts it with a stretch of the M25 whose ribbed concrete perversely feels smoother the faster you go, rewarding speeding.

  • Tuned road ridges produce a nice melody at legal speed via tyre noise
  • Drive too fast and the tune becomes unpleasant — feedback aligned with the desired behaviour
  • A poorly designed ribbed M25 stretch is less unpleasant the faster you go, incentivising speed
  • Sensory feedback can enforce rules more elegantly than signs or enforcement

the tune only sounds only good if you're traveling at the legal speed

Rory Sutherland
#behavioral-science#incentives#design
Explainer

Why People Prefer Slow Live Chat to Faster Phone Support

Live chat is far slower than a phone call — agents handle three customers at once with boilerplate — yet customer satisfaction is much higher. Sutherland suggests you can multitask while chatting, and the transcript carries over when you're passed to another agent, killing the need to repeat yourself.

  • Live chat is economically viable because agents juggle multiple customers with cut-and-paste answers
  • Despite being slower than speech, satisfaction is markedly higher
  • You can do something else while chatting instead of being held hostage to a call
  • Transcripts transfer between agents, removing the misery of repeating your problem

it's much, much slower than a spoken phone call. And yet the levels of customer satisfaction, even though it's slower, are much, much higher

Rory Sutherland
#customer-experience#behavioral-science#service-design
Explainer

Why Cyclists Ride Aggressively — and Regenerative Braking Fixes the Psychology

Sutherland argues cyclists run reds and cut corners because accelerating is painful and slow, creating a 'maintain momentum at any cost' sunk-cost mentality. An electric car's regenerative braking removes the resentment of slowing because you feel the energy returning to the battery.

  • On a bike, acceleration is painful and slow, so riders hoard momentum and take risks to keep it
  • It's a sunk-cost problem: giving up hard-won kinetic energy feels like a loss
  • Regenerative braking recaptures momentum, so slowing no longer feels wasteful
  • The result is a calmer, resentment-free style of driving — 'energy back into the tank for later'

they have this mentality of maintain momentum at any cost which causes them to sort of leap onto the pavement ignore red lights

Rory Sutherland
#behavioral-science#electric-vehicles#psychology
Explainer

Why People Eat at McDonald's in Milan: Decatastrophising, Not Optimising

Sutherland uses Taleb's observation that travellers eat McDonald's in Milan station not to find the best meal but to avoid a disastrous one. Much behaviour that looks irrational is people minimising downside rather than maximising upside — and brand preference works the same way.

  • Travellers choose McDonald's for a near-zero chance of a bad or rip-off meal, not the best meal
  • Many 'irrational' behaviours are decatastrophising — minimising worst-case, not optimising
  • Never call people irrational until you know what they are actually trying to do
  • Brand preference is largely 'I'll pay more to be confident it won't be shit'

what they're trying to do is to get something to eat which has a very, very low chance of being disappointing or a rip off

Rory Sutherland
#behavioral-science#decision-making#risk
Explainer

Why Big Brands Deliver: Reputation as a Sunk Cost You Can Lose

Sutherland explains the reputational mechanism: a company that has sunk billions into a brand has far more future revenue to lose by selling a bad product than an unknown maker. That's why a no-name Amazon brand ('Wujagu') has little incentive to invest in quality control.

  • You pay a premium for a Samsung TV mainly to be confident it won't be terrible
  • A big brand's sunk investment makes selling a dud costly in lost future profit
  • Unknown scrabble-rack Amazon brands have no reputation at stake, so no reason to guard quality
  • Reputation functions as collateral that guarantees behaviour

if you've invested billions in your brand as a massive sunk cost, you have much more to lose in terms of future revenue and profit…

Rory Sutherland
#branding#trust#economics
Explainer

The Quiet Power of Defaults: Samsung's Hub and the First In-Flight Tile

Sutherland describes how Samsung can make its Smart Hub the default landing screen — and be paid by the BBC for iPlayer placement — steering what millions watch. Williamson adds that in-flight entertainment views follow a power law: the first tiles shown capture the overwhelming share.

  • Modern Samsung TVs route users to the Smart Hub via easy 'home'/'back' buttons, controlling the default view
  • Broadcasters reportedly pay for prominent placement (e.g. iPlayer) in that hub
  • In-flight viewing is dominated by whatever appears on the first screen of tiles
  • First position, like being above the fold on Google, captures a power-law share of attention

the thing that appears first gets 50%... it's the same as being above the fold on Google

Chris Williamson
#defaults#attention#product-design
Explainer

Monothinking: Measuring Ignorance by One-Cause Explanations

Williamson shares a concept he calls 'monothinking': you can gauge someone's ignorance by how many different phenomena they explain with the same single cause — blaming war, poverty and pollution all on capitalism. Sutherland links it to monotheism and offers a deliberately mischievous counter-example.

  • Blaming many varied problems on one cause signals demand for answers outstripping supply
  • A Hindu friend calls it 'monotheorism' — the Western urge for one god behind everything
  • 'All social ills are down to social media' is flagged as too easy
  • Sutherland's mischief: some coarsening of behaviour may trace to the decline in smoking, a relaxing drug

you can gauge someone's ignorance by the number of phenomena they explain with the same answer

Chris Williamson
#thinking#explanations#bias

Story· 1

Story

How WWII Tinkerers Built the Limpet Mine with Aniseed Balls and Condoms

Williamson recounts Churchill's Ministry of Ungentlemanly Warfare: a web of garage inventors who built Britain's first limpet mine. They needed a primer that dissolved at an exact rate and landed on aniseed sweets, wrapped in condoms to slow dissolution — quietly emptying a Sussex village's shops.

  • Britain was woefully unprepared for the brutality of WWII and recruited amateur 'miscreant' inventors
  • The limpet mine used an aniseed ball to time the separation of two electrical contacts (~30 mins in salt water)
  • Condoms wrapped the mechanism to stop the sweet dissolving too fast, buying it out of village stores
  • Practical breakthroughs came from uneducated tinkerers with access to the right equipment

the solution that they came up to, having gone through everything, was Aniseed balls

Chris Williamson
#history#innovation#tinkering

Tool· 1

Tool

Bone-Conducting Headphones Are Really for the Over-50s, Not Joggers

Sutherland reviews bone-conducting headphones: poor for music fidelity but excellent for podcasts and calls, and unbeatable for staying aware of surroundings. He argues they're marketed to young joggers when half the real market is people over 50 with hearing loss.

  • Sound routes through the cheekbones, bypassing damaged inner-ear structures
  • Music quality is poor (missing warmth/timbre) but spoken content is brilliant
  • You stay aware of traffic and surroundings, unlike immersive noise-cancelling headphones
  • Ideal for the elderly with hearing loss — a mis-targeted market opportunity

they're being marketed to young joggers, when I would say that 50% of the market is actually people over 50

Rory Sutherland
#technology#aging#product-design

Takeaway· 1

Takeaway

Gerontech: Why Managing Aging Through Tech Is a Huge Investment Area

Using his father's stairlift as an example, Sutherland argues almost everyone gets aging aids too late out of pride and a desire for independence. He predicts 'gerontech' — technology for aging and care — will be an enormous source of progress and a worthwhile investment over the next decade.

  • People resist stairlifts to preserve independence and 'the exercise', delaying a transformative aid
  • Owning one carries no compulsion to use it — a pure option on easier living
  • Stairlift tracks screw into the stair wood, not the masonry — install is far less invasive than assumed
  • Tech for aging and care is a major, worthwhile investment frontier for the next 10 years

how you manage aging and caring through technology will be an enormous source of progress in the next 10 years and a very worthwhile area…

Rory Sutherland
#aging#investment#technology