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.
Reported estimates of how much data the brain holds in long-term memory range from 100 megabytes to 10 exabytesâin terms of Thriller on MP3, thatâs either one album or 100 billion albums. This range alone should give you an immediate sense of how seriously to take the estimates.