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We discuss the strengths and weaknesses of Ted Nelson`s Transpointing Windows. Although consistent with the medieval scholastic tradition, his vision of simultaneously viewing parallel documents only allows one to relate extensions, rather than intensions. The critique concludes that the IHTML/ConTexts approach is much more interactive and allows for real-time heterogeneity. These conceptual differences lead naturally to the notion of Intensional Hypertext, which combines the strengths of the ConTexts and of Intensional Objects.