Once upon a time,
there were not many people without some imagination. Those who had none were in fact considered to be rare.
One day someone was born with pretty much no imagination at all. As he grew up, his lack of imagination became so strong that it began to absorb the imagination of other people in such a way that they began to lack the little imagination they had. Quickly, the number of people lacking imagination spread, until only those with lots of imagination were left with any, leaving them