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Everything is a sample. The mine run is a sample of all ore extracted from this particular mine at the time of extraction. There is still more ore in the mine.  There are other mines. For every sample of ore in the universe, the sample is either on the truck in the video or it isn't. That truck dumps the ore samples into a sorter where some pieces are likely rejected based on size, shape, color, mineral composition, and other criteria. Next, the handle assembly is created in the metal forging process. Some of these handle pieces may be rejected as defective before the final process when two pieces are fitted and joined to create the final product: a pair of surgical forceps. There are cases that never make it to court. There are also cases that get filed, but fall apart for any number of reasons. 

Remember that a switch isn't the same thing as filter. A switch is implemented for speed and efficiency to create (or break) a connection at a major node. Filters, however, are necessary to decide where to go next (e.g. sorting). Filters are needed to deal with any complex (multivariate) datasets. These are two related, but distinct, functions.

Several landmark safety laws were passed to protect miners following the 1968 Farmington Explosion.