The 11" Macbook Air solved the laptop form factor. Thin, light, very portable, USB ports on each side , headphone jack and an external monitor port (in this case, thunderbolt). Could there be some refinements to my 2015 MBA ? Certainly - the two type-A USB ports could remain type A but be upgraded to USB3 ... you could add a USB-C port on each side in place of the magsafe and lightning ports and gain the ability to c…
If we took your advice they'd still have the old serial and parallel ports on them!