⚡ Quick Answer
The double empathy problem, proposed by autistic researcher Damian Milton, argues that the communication difficulties between autistic and non-autistic people are a two-way mismatch — not a deficit located solely in autism. Non-autistic people are equally bad at understanding autistic communication styles, equally poor at taking autistic perspectives, and equally likely to misread autistic social signals. The difficulty is mutual.
For decades, autism research and clinical practice operated on an assumption: autistic people have difficulty with empathy, theory of mind, and social understanding. The communication problems between autistic and non-autistic people were located in the autism. The double empathy problem challenges this assumption directly — and research has begun to support it.
What Is the Double Empathy Problem?
The double empathy problem is a theoretical framework proposed by autistic researcher Damian Milton in 2012. Its central argument is that when autistic and non-autistic people find it difficult to understand each other, this difficulty is not simply the result of a deficit in the autistic person. It is a mutual problem — both parties are struggling to understand the other's communication style, emotional expression, and social frame of reference.
The "double" in the name refers to the two-directional nature of the empathy failure. Autistic people may struggle to predict and interpret neurotypical social behaviour. Non-autistic people equally struggle to interpret autistic social behaviour, take autistic perspectives, or understand autistic communication. The mismatch is symmetric even if research has historically only measured one side of it.
The Original Empathy Narrative
The theory that autistic people lack empathy — sometimes called the "mindblindness" theory, associated with Simon Baron-Cohen's early work — became influential in the 1980s and 1990s. It proposed that autistic people lack a theory of mind: the ability to understand that other people have beliefs, desires, and perspectives different from one's own.
This framing had significant real-world consequences. It shaped how autistic children were taught (social skills training focused on making autistic communication more neurotypical), how autistic people were perceived (as emotionally cold or uncaring), and how diagnostic criteria were written (social reciprocity difficulties as a core feature).
Milton's critique argued that this framing was built on a fundamental methodological error: the empathy of autistic people was only ever tested in relation to neurotypical perspectives. Non-autistic people's ability to understand autistic perspectives was never measured. The research was systematically one-sided.
What Research Supports the Theory
Since Milton's 2012 paper, several strands of research have provided empirical support for the double empathy problem. Studies measuring rapport and information transfer between pairs of people found that autistic-to-autistic pairs communicated as effectively as neurotypical-to-neurotypical pairs — and that cross-neurotype pairs (one autistic, one non-autistic) communicated least effectively of all.
Research on first impressions found that non-autistic people formed negative impressions of autistic people within seconds of brief interactions — but autistic people formed no such negative bias toward non-autistic people. Non-autistic people were systematically failing to read autistic social signals, but this failure was not attributed to them. It was attributed to the autistic people whose signals were being misread.
What This Looks Like in Practice
A direct-speaking autistic person is experienced as rude by non-autistic colleagues who read directness as aggression. The autistic person, meanwhile, is genuinely trying to communicate clearly and efficiently and does not understand why this produces negative reactions. Both parties are experiencing a failure of mutual understanding — but only one party's communication style is labelled as deficient.
An autistic person's enthusiastic extended monologue on a topic they care about is experienced as inappropriate by non-autistic listeners who read it as failure to take turns. The autistic person is sharing something meaningful and is unaware that the social frame of the interaction has shifted. Again — mutual misunderstanding, located in one party.
Implications for Autism Support
The double empathy problem shifts the entire frame of autism support. If communication difficulties are a two-way mismatch rather than a one-way deficit, the interventions that target only autistic communication — making autistic people more neurotypical — address only half the problem at best.
More effective approaches involve education on both sides: autistic people understanding neurotypical social patterns, and non-autistic people understanding autistic communication styles. Workplaces, schools, and families that invest in the latter as well as the former create genuinely more inclusive environments than those that treat autistic communication as the only thing that needs to change.
Autistic-to-Autistic Communication
One of the most striking pieces of evidence for the double empathy problem is the observation that autistic people communicating with other autistic people do not show the same communication difficulties seen in cross-neurotype interactions. When the mismatch is removed — when both parties share the same communication frame — the supposed autistic social deficit largely disappears.
This matters enormously. It suggests that the difficulty is not located in the autistic person's neurology in isolation — it is located in the mismatch between different neurological styles. Autistic communities, online and offline, function with genuine social cohesion precisely because the double empathy problem does not apply within them.