Article by Grant Pasay
Ever come across one of those sandwich machines when you're hungry? You know, it's like a soda machine except it sells sandwiches. There's all these different kinds of sandwiches just sitting in the machine waiting to be picked - rows and rows of sandwiches, each in its own little area. While you're deciding whether to get corned beef or tuna, someone else comes along and selects egg salad. The egg salad sandwich pops out the slot at
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