First, preemptive and preventive uses of force are often justified by claiming either that there is substantial risk of a future attack or that it is difficult to ascertain how dangerous the target is.
Short-Term Memory: Up to 7 Items, But Highly Volatile. Many psychology experiments have shown that our short-term memory can hold only a limited number of separate items. The average is about 7 items, plus or minus 2, depending on the individual. You can easily confirm this by reading someone a series of words that have no connection with one another, then asking this person to repeat them.
How much memory would your âsystemâ have? A few scientists have puzzled over this question in recent years, with widely varying results. Syracuse University Professor Robert Birge estimated in 1996 that the human brain had a storage capacity of between 1 and 10 terabytes, with a likely value of 3TB (for comparison, high-end iMacs today come with a 1 terabyte memory).