Human attention span is shorter than a goldfish
The widely repeated statistic that human attention spans have fallen below a goldfish's 9-second span traces back to a 2015 Microsoft Canada report that cited an unverifiable third-party source. Neuroscientists and psychologists find no scientific basis for either number.
What we know
In 2015, Microsoft Canada released a consumer insights report claiming that the average human attention span had dropped from 12 seconds in 2000 to 8 seconds, one second shorter than a goldfish. The claim spread through major media outlets worldwide. BBC journalist Simon Maybin investigated the origin in 2017 and found that the human figure was attributed to a company called Statistic Brain, which provided no methodology, no primary research, and no peer-reviewed backing. Maybin was unable to verify the source.
The goldfish figure is equally unsupported. The behavioral ecologist Felicity Huntingford at the University of Glasgow confirmed that goldfish are capable of complex learning and have been used as model organisms in hundreds of peer-reviewed memory studies. There is no established scientific measurement of goldfish 'attention span' and no basis for the 9-second claim.
The broader concept of a single 'average human attention span' is itself scientifically problematic. Attention is not a unitary trait with a fixed duration; it varies enormously depending on task interest, motivation, cognitive load, and environmental context. People demonstrably sustain attention for hours when watching compelling films, reading absorbing books, or playing engaging games. University of California Irvine research has documented shortening screen-switching intervals over two decades, from around 150 seconds in 2004 to about 47 seconds between 2016 and 2021, but this measures task-switching behavior rather than a fundamental attentional capacity.
The myth persists because it is emotionally resonant and commercially useful for marketers arguing for shorter content, but it is not supported by cognitive science.
Common claims
- Humans now have an 8-second attention span, less than a goldfish.False. Both numbers lack credible scientific sources.
- Technology is shrinking our attention span.Partially supported. Screen-switching intervals have shortened, but this differs from total attentional capacity.
- Goldfish have a 9-second memory.False. Goldfish can learn and retain memories for months.