Now, here, you see, it takes all the running you can do, to keep in the same place.
—Lewis Carroll, Through the Looking-Glass and What Alice Found There
Alice never could quite make out, in thinking it over afterwards, how it was that they began: all she remembers is, that they were running hand in hand, and the Queen went so fast that it was all she could do to keep up with her: and still the Queen kept crying “Faster! Faster!” but Alice felt she COULD NOT go faster, though she had not breath left to say so.
The most curious ...