Fresh answers to tired questions

I'm beginning to become a little allergic to the word 'sector'. Over the last three weeks, I have participated in four long online Q&As about investing. In three of these, I was the person answering the questions and in one I was in the audience. In the last one, which I wrote about a week ago, the questions were being answered by the redoubtable Nassim Nicholas Taleb. In all four interactions, someone asked the standard Indian equity investment question about sectors, "Which sectors will do well now?" The problem with this question is not that it can't be answered but that it should not be asked. Imagine someone who could see into the future perfectly and actually provided you with the correct answer. How would that help you in actually making a sensible investment over the coming months and years and then act