[boost] [BB++] Documentary - Take 3

In the following video, I am explaining how objects of a lower scope are being promoted to a higher scope (please fast forward to 10:15): https://youtu.be/OBnpFUVEVe4 I added 5 slides explaining how objects are being promoted and I've renarrated everything after 6:21. I'm keeping the beginning because I am targeting newbies on the subject as well. I hope that's a good explanation because sharing this information publicly is a point of no return for me. Sincerely, -Phil