Smoking cycles

Sir, There was something eerily familiar about the arguments of eight academics disputing the health benefits of e-cigarettes, so carefully described by the Royal College of Physicians in its ground-breaking 2016 report (Letters, April 30).

Then the penny dropped: they were just like the arguments of the tobacco industry disputing the health damage of cigarettes, so carefully described by the Royal College of Physicians in its ground-breaking 1962 report.

Perhaps these things go in cycles?

Clive Bates

Director of Action on Smoking and Health (ASH), 1997-2003