For most people "forgetting" is a valuable phenomenon. There are lots of minor injuries and torts which are better off forgotten than recalled. Doesn't even have to be things other people did to you, but things you did yourself while learning.
Often I don’t think it is as much “forgetting” but more getting behind the events to the extent they don’t properly assess / understand the situation and then make poor choices and it is too late.
No, some set of people will forget. Even if they intended or desired to remember. Mental notes fade for some set of people. And at different time lengths.
reply