Google don't mess around existential threats to their search business model.

We're talking about the company who, when they saw the iPhone, recognized the mobile apps space as a threat to search (why search if they can open an app from a walled garden) and immediately went to work on Android, even if they were never in the phone business. They reacted faster and better than everyone else and the entire phone space as it was went bankrupt (Nokia, Blackberry, et al).

I have no doubt in my mind Google have ChatGPT as a top priority threat, and they'll come up with something to counter it. And Google already invest heavily on AI, they're not completely offguard.

If somehow someone invented a car, today, that could threaten ad search from Google, they'd be competing with Ford, GM etc in two years.