"AI" already contributes "substantially" to "scientific discovery". It's a very safe statement to make, whereas "full self-driving" has some concrete implications.
"AI" here means language models. Machine learning has been contributing to scientific discovery for ages, but this new wave of hype that marketing departments are calling "AI" are language models.
The capitalization makes it a Tesla reference, which has notoriously been promising that as an un-managed consumer capability for years, while it is not yet launched even now.
As an aside, that is happening in China right now in commercial vehicles. I rode a robotaxi last month in Beijing, and those services are expanding throughout China. Really impressive.
The new "Full Self-Driving next year"?