I’ve solved the conundrum of why five-year-olds are better at operating the TiVo than their parents using statistical physics (Shortcuts, 5 November). When (Number of different features × Age of user/Number of attempts to use)<1 adult may be said to have the hang of using “it”.
Helen Overton-Hore
Romsey, Hampshire
• Regarding slogans on T-shirts (Report, 3 November), we should not forget the observation of the jazzman who said: “If you gotta wear it, then you ain’t it.”
Harry Marsh
London
• Guardian offers, page 50 (7 November). Men’s & ladies wax jackets, just £35. Is this what a feminist newspaper looks like?
Alan Greenslade-Hibbert
Mollington, Oxfordshire
