There are relatively few scientific or technology breakthroughs whose significance is immediately and widely apparent. Without context, most scientific or technological developments run the risk of seeming trivial or irrelevant in the eyes of the general public. Historical context helps explain the nature of a discovery or innovation; but explaining its significance frequently requires a degree of extrapolation, notably descriptions of potential consequences and ramifications. communicators thus almost always need to include an element of forecasting in their presentations of research findings – typically based on researchers' own thinking about where their work may lead. This talk will illustrate the various ways in which reporting is done in the future tense; present some examples of how it works (and where it fails); outline the constraints on this approach; and suggest some similarities with the SF prototyping process.