The IBM researched this in the late ‘70es and reached broadly the same conclusion. They were talking about “productivity” instead of “bounce rate” back then, bu

The IBM researched this in the late ‘70es and reached broadly the same conclusion. They were talking about “productivity” instead of “bounce rate” back then, but the basic biology of attention span and working memory is the same. He and Richard P. Kelisky, Director of Computing Systems for IBM's Research Division, wrote about their observations in 1979, "...each second of system response degradation leads to a similar degradation added to the user's time for the following [command]. This phenomenon seems to be related to an individual's attention span. The traditional model of a person thinking after each system response appears to be inaccurate. Instead, people seem to have a sequence of actions in mind, contained in a short-term mental memory buffer. Increases in SRT [system response time] seem to disrupt the thought processes, and this may result in having to rethink the sequence of actions to be continued." “The Economic Value of Rapid Response Time” https://jlelliotton.blogspot.com/p/the-economic-value-of-rapid-response.html https://jlelliotton.blogspot.com/p/the-economic-value-of-rap...