A Canadian study has linked two facts that would not seem to have any relation: the fact of forgetting things and the IQ. Indeed, one would say that careless people are not so "smart" people. Researchers at the University of Toronto have seen that forgetting is a very important process for the mind, because it allows us to eliminate unnecessary data to make room for new ones and really important ones.
One of the many aspects of intelligence is knowing how to make the right decisions in life situations: according to the scientists, in order to make the right decision, unnecessary and secondary data must not interfere with the vital and useful ones. That is why anyone who forgets trivial details is not said to be not intelligent: in fact, most of the time he will have an intelligence even above average.
The purpose of memory, in fact, is not to recall memories in an accurate way, but to provide useful memories for the current situation. That's why the brain forgets some things; they simply did not consider them valid enough to allow them to occupy "storage space".
Most people who are intelligent means remembering many details even after some time, but the Canadian study shows that this is not the case: not remembering is not considered a brain failure, but a necessary process to give value to the useful and vital information we have learned, or to make room for the new ones we can learn!
Obviously, the study refers to cases in which forgetting does not involve upsetting to life; if instead it happens to forget important details - the home address, the mobile number, the name of a loved one - it is good to make a specialist visit to go back to the causes that cause these forgetfulness.