I think it is largely a Marketer's fantasy that people get up in the morning with a goal of "discovering new products." I don't want to discover new products. I especially don't want to while I'm trying to do something else that I actually WANT to do. If I need a new product, I will deliberately go out and look for it. I don't need marketers doing drive-by product announcements while I'm just trying to live my life.

The question of "how do people spontaneously discover products" is invalid. It's just not something people want in their lives.