It’s Back to the Future Day, October 21, 2015, the date set by Doc Brown and Marty McFly in Back to the Future Part II as the duo travel into the future. We might not have hoverboards quite yet — we’re getting there with new Segway/skateboard rolling devices — but we do have other futuristic items we might not have dreamed up when the movie was released in 1989, like Siri. And, wouldn’t you know it, Siri is in on the fun today.

If you load up Siri on your iOS device and wish her “Happy Back to the Future Day,” you’ll get a series of witty responses back. “Great Scott! The Future is Here!,” was one response I received. “The future. Unbelievable. Inconceivable! Wait, wrong movie,” was another. “I hear Hill Valley, California, is the place to be this time of the century,” Siri said when I wished her a third “Happy Back to the Future Day.”

Siri has plenty of other responses ready for you, too, in case you’re looking for another fun way to celebrate the future. Let us know some of her responses in the comments.