Andrew Chien told Fortune he’s been a computer scientist for 40 years but we’re close to “some seminal moments for how we think about AI and its impact on society.”

OpenAI CEO Sam Altman announced a sweeping 17-gigawatt buildout of compute across multiple sites in partnership with Oracle, Nvidia, and SoftBank.

Andrew Chien told Fortune he’s been a computer scientist for 40 years but we’re close to “some seminal moments for how we think about AI and its impact on society.”