In 2007, Harris launched a startup called
Apture. Google acquired Apture in 2011, and Harris ended up working on
Google Inbox. In February 2013, while working at Google, Harris authored a presentation titled “A Call to Minimize Distraction & Respect Users’ Attention,” which he shared with a small number of coworkers. In that presentation, he suggested that Google, Apple and Facebook should "feel an enormous responsibility" to make sure humanity does not spend its days buried in a smartphone. The 141-slide deck went viral at Google and was eventually viewed by tens of thousands of Google employees. It sparked conversations about the company's responsibilities long after he left the company. Harris holds several patents from his previous work at Apple,
Wikia, Apture, and Google. Harris left Google in December 2015 to co-found the
501(c)3 nonprofit organization Time Well Spent, later called the
Center for Humane Technology. Through his work at CHT, Harris hoped to re-align technology with humanity's best interest. He asserted that human minds can be hijacked and the choices they make are not as free as they think they are. At CHT, Harris has advocated for understanding and minimizing the negative impacts of digital technologies. In 2017, he spoke on
60 Minutes with
Anderson Cooper about the addictive design of smartphone apps. At a 2019 presentation in San Francisco, he coined the phrase "human downgrading" to describe an interconnected system of mutually reinforcing harms—addiction, distraction, isolation, polarization, fake news—that weakens human capacity, in order to capture human attention. Harris and other CHT team members were interviewed for the film
The Social Dilemma, distributed by
Netflix. In it he says, "Never before in history have fifty designers made decisions that would have an impact on two billion people" about the harms of social media. CHT offers an online course on how to build humane and ethical technology, called
The Foundations of Humane Technology, which has received notable media coverage. In recent years, Harris has expanded his focus from the
attention economy to close the gap between the accelerating pace of technology and risks/externalities it creates, compared to the capacity of culture and its institutions to respond and adequately guard against them. Harris and CHT call this "wisdom gap."
The Atlantic stated in its November 2016 issue that "Harris is the closest thing Silicon Valley has to a conscience."
Rolling Stone’s 25 People Changing the Future, and
Fortune’s 25 Ideas that Will Change the Future. He is also the co-host of the podcast,
Your Undivided Attention. Since 2023, Harris and the Center for Humane Technology have expanded their mission to address the societal risks associated with artificial intelligence. ==Media and other activities==