The goal of Science is to understand connections between things that are not actual or concrete. It involves testing what is known against what is not known, in the event of learning something new. The interior and exterior are once again involved in this process where the interior is composed of concrete concepts that do not have physicality and are general. The exterior deals with concrete things that do have physicality, are specific and are individual. The process involves taking sensory experiences to the inner nature (converting to soul stuff that is in the inner-world, therefore becoming spiritual). We are ultimately taking it in through Science.
Science is also the basis for the Scientific method which includes observation, a hypothesis, experimentation (with a control), revision of the hypothesis, memory, publication (way of increasing memory), keeping records (record hypothesis), and a conclusion. Ultimately, a hypothesis leads to a theory, and the theory leads to a law or laws. These laws are so remote from our experience(s), yet they are the determinant, which is applicable to all cases. Thus, observation is drawing from the exterior world that is a sensation and is outward. Furthermore, the analysis proves to be the mental process where it is inward or interior.
On another note, repetition is a form of change, making each moment different from the one before. Therefore, there are no two moments that are ever the same. There is definitely a consistency to repetition, however, it still changes even if it is in a subtle way. To add to this fact, time is simply a measure of change.