I worked for Amazon in sustainability for some time. "Fitting" 'perfectly' requires literally billions of shape combinations, because multiple items ship in one

I worked for Amazon in sustainability for some time. "Fitting" 'perfectly' requires literally billions of shape combinations, because multiple items ship in one box. I question whether it would save any holistic measure of energy/emissions/waste to solve that problem to any measure of 'perfectly'. The work Amazon has done to change box types, switch to bags, etc., has reduced waste considerably per package, though I suspect the absolute amount of waste has continued to increase with business growth.