Our perception of the universe rarely is direct physical interaction. Instead, it is the information of the physical events collected by our sensors. Information is only the description of the event. It is not the source event. The issue is, sometime we can not separate the event and it's information, and even fooled by it. A butterfly is an event. However, we perceive it's information transported by light. So is other butterflies collecting the information of it's smell. However, neither the sight nor the smell tells the whole story of the butterfly.