Having helped grow Google from a Silicon Valley startup to a global heavyweight, Eric Schmidt appreciates more than almost anyone the power of technology in the modern world. But some things scare him, too.

Speaking at the TIME100 Leadership Forum in Singapore on Sunday, the technologist, entrepreneur, and co-founder of philanthropic foundation Schmidt Futures said “you don’t need to worry about the killer robot.” It makes for a good movie, but “we’re not building that, right? It’s not happening.”