ILIs are often characterized by their inertia. If left to their own devices, they may choose to do relatively little to interact with the outside world. When they do interact, they often find their activities empty and unsatisfying. To ILIs, life is characterized by periods of stimulation. True stimulation is spontaneous, and the intervals between periods of stimulation are often characterized by tedium, inertia, and apathy. ILIs are not very adept at finding new areas of interest, and may seek to continue to reproduce past experiences instead of moving on to new things. In order to break out of this cycle, ILIs require an active, external, spontaneous stimulus. This spontaneity allows the ILI to discover new experiences and escape from the confines of his own mind.
ILIs are also very indecisive. They may lack the ability to make important decisions, especially regarding their own future. ILIs do not always know what they want out of life and may have difficulty setting or achieving long term goals. In order to act, the ILI needs a clear, tangible signal from somebody who is well grounded in external reality and knows exactly what must be done in a certain situation.
ILIs may consider work-related or intellectual pursuits important in the long term, but not in the short term. Even so, losing himself in these interests will rarely suffice as a true replacement for the discomfort that he may feel at his lack of decisiveness or inertia.