Let’s design a trashcan for a city street corner, shall we?Let me give you some design constraints.
It has to be pretty light, because the dustboys, er, sanitation engineers come by and they have to pick it up to dump the trash in the garbage truck.
Oh, and it has to be heavy, or it will blow away in the wind or get knocked over. (True story: I once got in an accident because a trash can blew in front of our car. Nobody was hurt, not even the trashcan.)
It has to be really big. People throw away a lot of trash throughout the day and at a busy intersection if you don’t make it big enough, it overflows and garbage goes everywhere. When that happens, one of the little six-pack plastic ringy-dingies will get in the ocean, and a cute little birdy will get ensnared in it, and choke to death. YOU DON’T WANT TO KILL BIRDIES, DO YOU?
Oh, also, it needs to be pretty small, because otherwise it’s going to take up room on the sidewalk, forcing the pedestrians to squeeze past each other, which, possibly, when the Effete Yuppie Listening to His iPod gets distracted by a really funny joke on the Ricky Gervais podcast and accidentally brushes against the Strangely Haunted Vietnam-Era Veteran, can result in an altercation of historic proportions.
Ok, light, heavy, big, and small. What else. It should be closed on the top, so rubbish doesn’t fly away in the wind. It should be open on the top, so it’s easy to throw things away.
It should be really, really, really cheap.