I hope to go through previous posts to check for comments to which I have not responded. On occasion, a reader posts a comment but for various reasons I don’t get a chance to respond, either because I have been busy responding to other comments and plan to give time later to the response but then get overtaken by more recent posts or because a comment is made to a much earlier post and I do not always spot it. (Anyway, that’s my excuse – sorry reasoned explanation.) If you have previously contributed a comment and not had a reply, please feel free to draw my attention to it in a response to this post. I know I owe ladytizzy a reply, for example, on a question she asked which was essentially about intellectual property.