What hyperthymesia is
Hyperthymesia, also called highly superior autobiographical memory, was first documented in 2006 by Elizabeth Parker, Larry Cahill and James McGaugh at the University of California, Irvine. Their subject was Jill Price, initially anonymised in the literature as AJ. As of April 2016, six cases had been confirmed in peer-reviewed articles.
The condition has two defining characteristics: spending an unusual amount of time contemplating one's own past, and an extraordinary ability to recall specific events from it in vivid detail. Those memories are autobiographical, involuntarily encoded and automatically retrieved, which distinguishes them entirely from the mnemonic techniques competitive memorisers train. Brain imaging of Price showed enlarged temporal lobes and caudate nuclei.
Veiseh's account
Veiseh's claim, as reported by BBC Future in January 2016, is that he remembers nearly every day since he was 15. He is described as a painter and polymath, and the encyclopedic record of the condition notes that he uses his memory of art history in making his paintings.
The date at which his recall begins is itself notable. Most documented cases describe an onset in childhood or early adolescence, and the memories accumulate from that point forward rather than reaching backwards into infancy. Fifteen is a specific starting line, and it is the figure BBC Future reported.
The 2022 challenge
One part of his story has been contested. A research paper published in 2022 found that having hyperthymesia does not increase creative thinking, a finding that contradicts the connection drawn between his memory and his painting.
This is worth stating plainly rather than leaving out. The claim that an unusual memory feeds artistic creativity is intuitive, widely repeated and, according to that paper, unsupported. Veiseh's own account of how he works is his to give; the general proposition it rests on has been tested and did not hold.
Blessing and curse
The BBC Future headline framed the condition as both a blessing and a curse, which matches what the literature describes. A person who cannot let go of a date cannot let go of what happened on it either, and the first documented case, Jill Price, described the constancy of recall as a burden as much as a gift.
That framing is also the reason coverage of hyperthymesia tends to be careful. These are not performers demonstrating a trick; they are a handful of confirmed individuals whose private lives are unusually available to them, and to anyone who asks.
What is documented and what is not
Documented: that BBC Future profiled him in January 2016, that he says he remembers nearly every day since 15, that he is a painter, that he has used his memory of art history in his work, that six cases of the condition had been confirmed in peer-reviewed articles by April 2016, and that a 2022 paper found hyperthymesia does not increase creative thinking.
Not documented in these sources: his age or date of birth, where he lives, where he studied, his exhibitions, and anything about his work since 2016. Whether his own case has been formally confirmed in the peer-reviewed literature, as opposed to reported in the press, is not established by the sources used here. No IQ figure appears in this file.
| Person | Country | Milestone | Age / Stat |
|---|---|---|---|
| Nima Veiseh | United States | Hyperthymesia: recalling almost every day since the age of 15 | — |
| Rebecca Sharrock | Australia | Highly superior autobiographical memory (HSAM) | — |
| Marc Umile | United States | Reciting 15,314 digits of pi | — |
| Krishan Chahal | India | Reciting 43,000 digits of pi | — |
| Rick de Jong | Netherlands | Reciting 22,612 digits of pi | — |
What is documented — and what is not
✓ Documented
- Profiled by BBC Future in January 2016 as a painter who recalls nearly every day since age 15
- Hyperthymesia was first documented in 2006 by Parker, Cahill and McGaugh at UC Irvine, with Jill Price as the subject
- Six cases had been confirmed in peer-reviewed articles as of April 2016
- A 2022 paper found that hyperthymesia does not increase creative thinking
? Unverified, disputed or wrong
- Whether his own case has been formally confirmed in peer-reviewed literature is not established here
- No age, date of birth, residence or education appears in these sources
- Nothing in this record documents his work after 2016
Questions people ask about Nima Veiseh
What is Nima Veiseh known for?
Saying that he recalls almost every day of his life since the age of 15, a form of hyperthymesia, and for being a painter who has used his memory of art history in his work.
How old is Nima Veiseh?
No age or date of birth appears in any source used for this page.
What is hyperthymesia?
An unusual, involuntary ability to recall specific events from one's own life in vivid detail, combined with spending an unusual amount of time thinking about the past. It was first documented in 2006 at the University of California, Irvine.
How many people have it?
Six cases had been confirmed in peer-reviewed articles as of April 2016.
Does a perfect memory make someone more creative?
A research paper published in 2022 found that having hyperthymesia does not increase creative thinking, which contradicts the link often drawn between his memory and his painting.
Is hyperthymesia the same as memory training?
No. The memories are autobiographical, involuntarily encoded and automatically retrieved, unlike the deliberate mnemonic systems used by competitive memorisers.
Where is Nima Veiseh now?
Nothing in the sources used here documents his work or whereabouts after 2016.
Is Nima Veiseh on Wikipedia?
He is mentioned within the English Wikipedia article on hyperthymesia. No standalone article for him is recorded here.
Quick quiz: how well do you know Nima’s story?
From what age does Nima Veiseh say he remembers nearly every day?
Who was the first documented case of hyperthymesia?
What did a 2022 paper find?
Sources
- The blessing and the curse of the people who never forget — BBC Future, 2016-01-26
- Hyperthymesia — Wikipedia (Hyperthymesia)
Checked by the Geniuses.club editorial team. Ages are given as of September 2026.
Discover More Child Prodigies
50+ stories of contemporary young geniuses changing chess, music, science, and art.
Explore All Prodigies →









