The Gmail program code mentions a new feature called “Magic Inbox” (also called “icebox-inbox”).
Its purpose is not entirely clear, but by indirect evidence one can guess that this is most likely a function for the social sorting of letters. That is, the program will automatically bring to the fore the most important letters for you. ')
Microsoft has similar developments, we have already talked about them. The intelligent filter takes into account the frequency of correspondence with each recipient, the response time to his letters (the faster you respond, the more important the recipient is to you) and other parameters. Based on this, each addressee is assigned a priority factor by which letters can be sorted.