The way I imagine this working is: you buy X,Y and Z. If enough people buy these together (along with other things) the algo will deduce that if you buy X you a

The way I imagine this working is: you buy X,Y and Z. If enough people buy these together (along with other things) the algo will deduce that if you buy X you also probably want Y and Z. It will recommend them. This is not new and there are plenty examples.