Slide rulesBMJ 1994; 309 doi: https://doi.org/10.1136/bmj.309.6969.1665a (Published 17 December 1994) Cite this as: BMJ 1994;309:1665
- Bernard Dixon
The opening, plenary session of the conference began with a “keynote” address from a celebrity who had travelled 4000 miles to be there. The first slide appeared on the screen. The speaker peered at it. “You won't be able to see this too well,” he said, “so let me take you through these results.” There were 20 rows of figures and 16 columns, all of them undecipherable beyond the first 10 rows of seats.
The eight slides that followed were at least as bad—more wodges of faint data, a baffling hand drawn diagram, and graphs with unlabelled axes and no explanation of the symbols on the curves. There …