RE "Why we have to forget to remember"

'Twas indeed ... although a bit more detailed than many might be able to comprehend or appreciate.
Of course much of the discussion revolved around info that has been known for a long time.
And for those who might be dealing with others who have Alzheimer disease or other forms of dementia, the major role which emotion plays in memory retention/maintenance [limbic system] is worth understanding and remembering.