Sentence:  Rather than indulge in historical <WSD>oneupmanship</WSD> – who knows, maybe the scratchings around the cave paintings were the first primitive hypertext links? – we will begin our brief overview of the history of hypertext in the same era as the birth of the technology which supports it. 
Meaning of the word marked with <WSD> tags:  The art or practice of successively outdoing a competitor.