3 ms·

You've just invented shipping containers.

• RocketSyntax 6y ago
  At a micro scale
• wyattpeak 6y ago
  I think GP has probably consciously drawn inspiration from shipping containers to solve a smaller-scale problem.
• egypturnash 6y ago
  No, they’ve just invented recyclable containers with a large enough deposit to be worth reusing. Milk bottles are the classic example of this. Ban plastic containers and you’re halfway there.