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.
Short-term memory can hold up to 7 pieces of information at the same timeâ¦ But only for around 20 seconds! According to a study conducted in 2001, left-handed people have better memories. This is because the corpus callosum (the white matter in the brain) in lefties is larger than that of right-handed people.