A Secret Source of Connection

2026-06-15 - source - Read full transcript

Shankar Vedantam (host)Amit KumarGary KnightGeorge SaundersJulie Cadwallader Staub

Key insights

People underestimate how much a small kindness will be appreciated by the person receiving it.

In a skating-rink experiment, participants gave away hot cocoa to strangers in a Chicago park and predicted the recipients' reactions beforehand. Both givers and recipients ended up in significantly better moods than normal, but recipients felt significantly better than givers had anticipated. A follow-up cupcake study isolated the effect of the kind gesture itself (versus just receiving a treat) and found the same underestimation.

prosociality-paradox

Givers and recipients evaluate the same act of kindness through different lenses: competence versus warmth.

Kumar's research shows givers focus on whether they did the 'right' thing (was the gift good enough, did I say the right words), essentially auditing their own competence. Recipients care far less about execution and far more about the fact that someone thought of them at all. This mismatch is why givers systematically undersell their own impact.

warmth-vs-competence

The gap between predicted and actual reaction is not unique to strangers; it also applies to people we're close to.

A study by Zita Oravecz and Chelsea Muth at Penn State found that daily small acts, expressions of appreciation, and simple compliments are what make people feel most loved by those closest to them. Kumar notes the people performing those small acts often see them as inconsequential rather than among the most important things they could do for another person.

warmth-vs-competence

People also underestimate how willing others are to help when asked.

In a study by Nick Epley and Xuan Zhou at a botanical garden, visitors asked to request a photo from a stranger predicted the stranger would feel more inconvenienced than they actually did, and underestimated how positive the stranger would feel about being asked to help. The same egocentric-bias mechanism that suppresses giving also suppresses asking.

egocentric-bias

Kindness has downstream, contagious effects that givers rarely anticipate.

In lab experiments, people who had just received a small gift (a chocolate bar, a box of tea) subsequently allocated significantly more money to an anonymous stranger in an economic game than people who received nothing. Kumar frames this as a potential virtuous cycle that people don't realize they have the capacity to start, illustrated by a real-world case of 378 consecutive customers paying for the next person's coffee at a Starbucks drive-thru.

prosociality-paradox

Failures of kindness, not acts of unkindness, are what people tend to regret most.

Author George Saunders, recounting a Syracuse commencement address, says that although he never directly bullied a shy classmate named Ellen and sometimes mildly defended her, he still regrets, 42 years later, not doing more to stop others from mocking her. Kumar frames this as evidence that most people aren't short on kindness, they're short on the confidence to act on it.

bystander-effect

Concern about seeming incompetent, not indifference, is the real barrier to reaching out.

Kumar describes driving through the town of an estranged grad-school friend going through a divorce and choosing not to stop, not because he didn't care, but because he worried it would seem rude, that he wouldn't know what to say, and that she'd wonder how he'd learned about her situation. None of his hesitations involved a lack of desire to help; all of them involved fear of doing it imperfectly.

bystander-effect

Writing a gratitude letter reliably produces a bigger positive reaction than senders expect.

In Kumar's classroom exercise, students write a letter of appreciation, predict the recipient's reaction, then learn the recipient's actual response. Senders consistently underestimate how surprised and moved recipients are and overestimate how awkward the recipient will feel. One striking example: an international student's letter to his mother, which included 'I love you' for the first time, and she wrote back starting with the same words.

gratitude

Practicing kindness in high-friction situations builds the confidence to keep doing it.

Kumar describes helping a Spanish-speaking stranger at an airport connect to wifi despite having 'very little confidence' in his own Spanish, framing this as a direct application of his research: the anticipated cost of looking incompetent was far smaller than the actual value delivered, and it made him feel good too.

prosociality-paradox

A stranger's timely help in a moment of crisis can matter more for its warmth than its expertise.

After Gary Knight crashed his bike alone on a remote Scottish mountain road, dozens of passing vehicles didn't stop, but three Polish paramedics on vacation did, treating him and waiting nearly an hour for medics. Knight says what stayed with him wasn't just their medical skill but the fact that strangers chose to give up an hour of their vacation for him.

bystander-effect

Media referenced

Commencement address at Syracuse University - other - Author George Saunders' 2013 Syracuse speech, in which he says his biggest life regrets are 'failures of kindness,' recounting how he stood by while a shy classmate named Ellen was mocked in seventh grade.
My Unsung Hero - podcast - Hidden Brain's sister show; the closing segment features listener Julie Cadwallader Staub's story about a stranger who guided her out of Boston after she got lost following her husband's death.

Companies

VII Foundation - Media nonprofit run by guest Gary Knight, whose cycling accident in Scotland opens the episode.
Starbucks - News clip about a 378-person pay-it-forward chain at a Tyrone Boulevard drive-thru, used to illustrate kindness's downstream, contagious effects.

Techniques and frameworks

Prosociality Paradox - Amit Kumar's term for the finding that acts of kindness reliably make both giver and recipient feel good, yet people remain reluctant to perform them because they systematically misjudge the costs and benefits involved.
Gratitude letter exercise - Kumar has participants write a letter to someone who impacted them, predict how the recipient will feel, then compares that prediction to the recipient's actual reported reaction; senders consistently underestimate the recipient's surprise and positive response.
Expected-utility framing of kindness - Kumar borrows economists' cost-benefit language to explain hesitation: potential givers overweight the social costs (awkwardness, rejection, seeming incompetent) and underweight the benefits to both parties.
Egocentric bias - The scientific term Kumar uses for the perspective-based asymmetry where givers evaluate their own kind acts by how competent they felt performing them, while recipients evaluate the same acts by the warmth of being thought of.

Summary

Hidden Brain host Shankar Vedantam opens with the story of Gary Knight, a photojournalist injured alone on a remote Scottish mountain road, passed by car after car until three vacationing Polish paramedics stopped to help. That story frames the episode's central question: if being kind reliably feels good for both giver and receiver, why do people so often withhold it? The answer comes from University of Texas psychologist Amit Kumar, who was prompted to study the question after his own failure to act: driving through the town of an estranged grad-school friend going through a painful divorce, and choosing not to stop because he worried it would be awkward, unwelcome, or handled badly.

Kumar's research identifies what he calls the Prosociality Paradox: kind acts consistently make both parties feel better than expected, yet people remain reluctant to perform them because givers and recipients evaluate the same act through different lenses. In skating-rink and cupcake-giveaway experiments, people who performed small acts of kindness for strangers underestimated how positively the recipients would feel. Givers tend to fixate on competence, whether the gesture was executed well, while recipients care mostly about the warmth of being thought of at all. The same egocentric bias runs in the other direction too: in a botanical-garden study, people asking strangers for a favor (taking their photo) badly overestimated how inconvenienced the stranger would feel.

The paradox extends beyond strangers to people we already know. Research from Penn State found that small, everyday expressions of appreciation are what make people feel most loved by those closest to them, even though the people performing those small acts usually see them as minor. Kumar's own gratitude-letter exercise, in which students predict a letter recipient's reaction and then find out the real one, produces the same gap every time: senders underestimate the recipient's surprise and overestimate their discomfort. One student's letter to his mother, which included the words "I love you" for the first time, got back an equally direct reply.

Author George Saunders' account of a former classmate, a shy seventh-grader named Ellen who was bullied while he stood by and did little, reframes the bystander effect through this same lens. Saunders says that decades later, his deepest regrets are "failures of kindness," not deliberate cruelty. Kumar's broader point is that most people are not short on kindness; they're short on confidence that their kindness will land well, and that fear, more than indifference, is what keeps a hand from being extended.

The episode also traces the contagious, downstream effects of kindness: lab participants who had just received a small unearned gift subsequently gave significantly more to an anonymous stranger in a follow-up game, a real-world echo of a 378-person pay-it-forward chain at a Florida Starbucks drive-thru. Kumar closes by describing his own attempt to act on the research, helping a Spanish-speaking stranger at an airport connect to wifi despite his own rusty Spanish, and reconnecting, eventually and unexpectedly easily, with the friend he had once driven past without stopping.

Notable Quotes

"What I regret most in my life are failures of kindness." - George Saunders

"We get that people like cupcakes, but it turns out that getting a cupcake as a result of an act of kindness can be surprisingly good." - Amit Kumar

"I think the paradox is really that these are actions that tend to feel good for both the people doing them and the people on the receiving end, and yet even though it feels good, it's seen as good, it's perceived to be good, we are reluctant to behave in these ways that, in everyday life, will leave us feeling happier." - Amit Kumar

"It's kind of easy to stay reserved. 'Maybe someone else will help. I don't want to get involved.' Those are the thoughts that sometimes enter our minds, but this is something that obviously left her feeling positive, and it actually made me feel really good, too." - Amit Kumar