From Paul Dove
There is an obvious problem with Google’s plan to rank websites according to their trustworthiness (28 February, p 24).
Doing so by cross-referencing facts may be appropriate for current events, but perhaps not when applied to scientific facts. It is well known that scientific facts have a half-life, as existing research is superseded by the latest results (22 September 2012, p 36). If Google does not consider this, its search results will not display the most up-to-date but as yet unestablished scientific ideas.
Hampton, London, UK
