As a rule, when intellectuals contribute to public debate on any issue of public concern in any country, it is an entirely wholesome development, and one deserving every encouragement. That is truer if the intellectuals involved know how to communicate even the most abstruse area of knowledge vividly, clearly, compellingly. For, when we say we desire ‘informed public opinion’, one of the best ways of bringing that about is by encouraging well-trained minds on any subject relevant to a public policy question of general concern to help their fellow-citizens by throwing a bright light on the subject. That is why news and current affairs editors everywhere try to maintain a roster of experts that can be called upon to comment on issues occasioning public controversy.
What you are reading here is a technical blog. In the World Bank they are (pretentiously?) known as 'Expert Blogs'. I post these reflections once a week, for instance, and, as you would expect, I tend to think about them before I do so. But, as we all know, all over the world these days are bloggers of a very different kind. They blog not only everyday but several times a day.