ABSTRACT
The insertion of elements into unexpected contexts has been considered in the arts since ancient times. During the first years of the Christian era, Horace described this tactic in his Ars Poetica:
If a painter should wish to unite a horse’s neck to a human head . . . so that what is a beautiful woman in the upper part terminates unsightly in an ugly
fish below . . . poets and painters (you will say) have ever had equal authority for attempting any thing.2
