The Jordan Harbinger Show
Episode 1293: Abigail Marsh | How Fear Separates Saints from Psychopaths (Part 2)
Date: March 5, 2026
Host: Jordan Harbinger
Guest: Dr. Abigail Marsh, neuroscientist and author of The Fear Factor
Episode Overview
This episode is a continuation of Jordan Harbinger's fascinating discussion with Dr. Abigail Marsh on the neuroscience and psychology of psychopathy, altruism, and, pivotally, how fear (or lack thereof) threads through both extremes. The conversation unpacks misunderstandings about psychopathy, the treatability of personality disorders, the biology of empathy and fear, the roots of altruism (and why some people donate kidneys to strangers), and what actually makes humans generous — all with Dr. Marsh’s characteristically incisive, optimistic insight.
Key Discussion Points and Insights
Can Neuroscience Predict Psychopathy or Altruism?
- Current limits: Brain scans (fMRI) can't accurately diagnose individual psychopathy or altruism yet, as they mostly show blood flow (not direct neuronal or neurochemical activity).
“We’re a long way from being able to diagnose anybody using a brain scan.” — Dr. Abigail Marsh [02:31]
- Ethical implications: The risk is in assuming such traits are immutable; Dr. Marsh stresses psychopathy and related disorders are more treatable than pessimists believe.
“This weird pessimism people have about psychopathy and other personality disorders... is not really relevant to reality. They’re totally treatable.” — Dr. Abigail Marsh [03:47]
- On change: Many with psychopathy want to change; they see their lives aren’t working and look for ways out of negative behavioral spirals.
“I can’t tell you how many people with psychopathy I’ve talked to who don’t want to be this way anymore... They’re like, ‘I’m the problem, it’s me.’” — Dr. Abigail Marsh [04:45]
Personality Traits, Social Masking, and Outliers
- Discussion of face blindness (prosopagnosia) and its contrast with “super recognizers.”
- Social masking: Those with outlier traits (autism, high intelligence, psychopathy) learn to “act more like people at the middle” to fit in.
“In order to get along with people, if you’re at the tail, you have to kind of act more like people at the middle, and you have to mask.” — Dr. Abigail Marsh [10:55]
- Even altruists and outliers learn to adapt for social harmony.
Decoding Psychopath vs. Psychotic vs. Sociopath
- Psychopath: Lacks empathy, aggressive, remorseless.
- Psychotic: Cannot distinguish between reality and delusion/hallucination.
“Psychopathic refers to somebody who doesn’t care about other people. They tend to be aggressive and be remorseless. Whereas people who are psychotic don’t really understand the difference between reality and hallucination or delusion.” — Dr. Abigail Marsh [12:25]
- Why the confusion? The similar-sounding words cause public misunderstanding.
- Sociopath: No longer a scientific term; “psychopathic” is now the accepted scientific term. “Sociopath” is a vague, often misused pop-culture label.
“The term sociopath... is basically a term now that is mostly just used by movie makers and authors... There’s a thousand things people use it to mean, but they’re all incorrect because it doesn’t really have a meaning.” — Dr. Abigail Marsh [21:42]
Altruism in America and Worldwide
- America ranks among the world’s most altruistic countries, especially in helping strangers (charitable giving, volunteering, donating blood/organs).
“Altruistic behavior we can measure is altruism for strangers... those kinds of behaviors, measured in nice objective ways, you see happen at very high levels in the U.S.” — Dr. Abigail Marsh [22:32]
- Well-being and altruism are correlated; “happy” countries (Scandinavia, Netherlands) also show high altruism.
- People from less wealthy backgrounds or communities sometimes display the most striking generosity.
Fear as the Key Differentiator Between Altruists and Psychopaths
- Fear is protective and socially connecting. Witnessing others’ fear elicits an empathic, helping response in most people.
“Fear... is a really positive emotion in terms of what it does for us socially.... When you see somebody who’s in imminent danger, most people, that kicks in a very strong empathic response.” — Dr. Abigail Marsh [26:17]
- Psychopaths experience low fear: They don’t respond to fear cues in others, or treat threat as thrilling, not aversive.
“One of the reasons [psychopaths] don’t help... is because they don’t seem to feel fear strongly themselves... If anything, they feel sort of excitement in those situations.” [26:48]
- Altruists are highly sensitive to others’ fear: Their brains (specifically, their amygdala) react strongly to fearful faces and cues.
“Their brains respond even more strongly to the sight... of somebody else who’s afraid. They’re better at recognizing that fear than a typical person and report more of a desire to help.” [27:19]
Extreme Altruism (e.g., Born Kidney Donors)
- Dispelling the myth: Altruistic kidney donors don’t do it for glory or attention. Many keep their donation private, motivated by genuine empathy.
“She was a Buddhist priest... felt like she had a duty to help more than she was in the world... When she realized so many people out there... lacked a kidney, she thought, ‘That’s definitely something I can do.’” — Dr. Abigail Marsh [30:03]
The Evolutionary and Social Roots of Helping
- Kin selection: We're evolutionarily primed to help family, but human altruism extends to unrelated strangers.
“The vast majority of, for example, kidney donations... go to direct family members... [but] we help lots of people who aren’t our relatives.” — Dr. Abigail Marsh [34:45]
- Reciprocal altruism: Cooperation (e.g., barn-raising) is helping now so others help us later; it’s essential for social cohesion.
- Wellbeing and helping: Acts like community barn raising improve wellbeing and social ties.
Why People Don’t Become Organ Donors
- Myths and misplaced fears about donation (e.g., doctors won’t try as hard to save your life, black market scares) endure, but are mostly unfounded.
“A lot of people, I don’t understand how this would even work, but there’s fears about organ black markets.” — Dr. Abigail Marsh [38:43]
- Very few deaths result in viable organs; many on transplant lists die waiting.
- Opt-out vs. opt-in: Countries with opt-out systems see higher donation rates.
Empathy and How to Increase It
- Empathy for pain and fear: Altruists’ brains respond robustly to others’ pain and fear even without explicit prompts, unlike average adults, who need to be asked to empathize.
“Very altruistic people show more empathy for strangers experiencing both fear and pain... The altruists just do empathize with pain....” — Dr. Abigail Marsh [47:09]
- Building altruism: Start by helping more, in any way that fits your personality; the rewards of helping increase motivation.
“The best way to change your behavior is by changing your behavior... Once you start helping people, the rewards kick in and... motivate you to do it again.” [47:38]
Social Media, News, and the Perception of Human Nature
- Social media’s trap: Algorithms amplify negativity, leading us to believe people are nastier than they are. Real-world kindness is far more frequent.
“The algorithms amplify negative behavior and make us believe that people are much worse than they are... And that cynicism then kicks in and I worry could cause people to be less altruistic.” — Dr. Abigail Marsh [49:48]
- Negativity bias and trust: We remember and notice bad acts more, which distorts our sense of how common they are.
“Bad behavior is actually rare. And so when it does happen, it gets our attention... So [our brains] misremembers bad behavior as being so much more common than it really is.” [54:02]
- Societies with historically low trust, like Belarus, experience less spontaneous generosity.
Effective Altruism — Promise & Pitfalls
- The ideal: Use money to maximize good (e.g., saving more lives per dollar by donating to high-impact charities).
- Critique: Some feel the movement is too impersonal, technocratic, or used to cover questionable wealth accumulation.
“I think any way that you give to help other people is a mitzvah, and you should just do it.” — Dr. Abigail Marsh [60:14]
Memorable Quotes & Moments
-
On treating psychopathy:
“Not everybody figures this out, but a lot of people are like, I finally figured out that... I’m the problem, it’s me.”
(Dr. Marsh, 04:45, paraphrasing Taylor Swift humorously) -
On face blindness:
“You learn how to recognize people from, like, particular cues... Spouse? Oh, yeah.”
(Dr. Marsh, 06:33) -
On empathy and outlier behavior:
“If I sound like a walking dictionary, other people are gonna make fun of me... So I have to learn to mask.”
(Dr. Marsh, 10:55) -
On redefining ‘sociopath’:
“I wish we could just burn the term sociopath and get rid of it...”
(Dr. Marsh, 21:42) -
On American generosity:
“There are good and bad people everywhere... but if you look at altruistic behavior, [the US is] pretty high.”
(Dr. Marsh, 23:36) -
On the roots of human altruism:
“What’s interesting about people who are very altruistic... is that they’re really sensitive to fear.”
(Dr. Marsh, 27:28) -
On helping as a path to altruism:
“The best way to change your behavior is by changing your behavior.”
(Dr. Marsh, 47:40) -
On social media negativity:
“People who are jerks on social media are also jerks in real life. They’re just freer to act jerky.”
(Dr. Marsh, 49:48)
Important Timestamps
- 02:31 – Why brain scans can’t yet predict psychopathy or altruism
- 03:47 – Misconceptions about treatability of personality disorders
- 10:55 – Social masking by outliers, including psychopathy and intelligence
- 12:25 – Psychopath vs. psychotic: key differences
- 21:42 – “Sociopath” is out of date; “psychopathic” is the scientific term
- 22:32 – Measuring American altruism and what it means globally
- 26:17 – How fear shapes altruism and psychopathy
- 30:03 – Why altruistic kidney donors act and what motivates them
- 38:43 – Myths and realities of organ donation
- 47:38 – How to build more empathy and altruism
- 49:48 – The impact of social media on perceived human behavior
- 54:02 – How negativity bias warps our view of society
- 58:54 – Effective altruism movement: hopes and critiques
Final Takeaways
- Most atrocities are committed not by psychopaths, but by ordinary people convinced their aggression is justified (20:00).
- Fear is not only a self-protective emotion, but also the emotional engine of empathy and helping.
- Our perceptions of widespread selfishness are shaped more by media, algorithms, and negativity bias than by day-to-day reality.
- Altruism can be learned and cultivated; most people are capable of more good — and more empathy — than they assume.
For resources, links to Dr. Abigail Marsh’s work, and related episodes (e.g., on organ donation), see the show notes at jordanharbinger.com.