Spoons

One of the concepts I find difficult to grasp is this idea that you iterate through an enormous (relatively speaking) quantity of data to find the right place to put something, or the right something to put somewhere. To me that seems odd — like checking every drawer in the kitchen to find out where the spoons should go, rather than just knowing where they're kept. But I guess the process moves at such speeds that you're not really aware that this is happening, anyway.