Before USB, different devices have different cables and sockets. With USB-C, the sockets and cables now look all the same, but the functionality is all different!
"Will this port allow charging? Can I plug in my display and get an image on it in this port? Is this PD? Does the cable support PD?"
"Will this port allow charging? Can I plug in my display and get an image on it in this port? Is this PD? Does the cable support PD?"
Yay for progress!