Cracking the whip on a cruel horse racing practice | Brief letters

Finally a piece of good news from horse racing (Whips to be banned in £1.8m Racing League summer series, Sport, 3 March). Jeremy Wray of the Racing League says “what we’re doing is probably in line with future thinking”. Indeed. And the sooner the better. Horse racing exists solely for the benefit of the gambling industry – cruelty should play no part in it.
Richard Exworthy
Cardiff

• Matthew Cobb’s long read “Why your brain is not a computer” (Journal, 27 February) should be entitled “Why your brain is not a laptop”. The brain performs computations on information and is, by definition, a computer. But it clearly does not work in the same way as any laptop or desktop PC.
Matthew Buchan
Neuroscientist, University of Oxford