Dave and Joe are driving in a car on the highway. A red car passes them and speeds by them. Dave says to Joe "look at that red car, it is going so fast we are likely to find him in a crash somewhere up ahead." Under the present sense impression exception to the hearsay rule, Dave's statement to Joe can be admissible as evidence even though it is hearsay. Dave's statement is a statement describing an event as it was occurring, the event here being the red car speeding on the highway. Under this exception, Joe would be able to testify in court as to what Dave said, even if Dave was available to testify himself.