From Roy Smith
I was puzzled by your short article about an electronic shirt that knows when the wearer is thirsty (29 November, p 23). We are told “as the person becomes thirsty the shirt will send alerts reminding them to drink”.
Isn’t that what the sensation of thirst does? Talk about pointless, redundant and wasteful technology. For their next trick, how about a hat that reminds you to breathe?
Burntwood, Staffordshire, UK
