Change blindness is a function of two bottlenecked processes, processes that need to filter a great deal of information and can only do so much at once. The first is our limited ability to perceive the world through our senses. The second is our limited short-term memory capacity. As mentioned in Chapter 1, our short-term memory really is super-short-term, lasting only about 30 seconds, and has a very limited capacity. That means that when we experience a complex scene we cannot possibly remember all of the details in it.
