Sorry, "half as old again as me" doesn't make sense. The "again" is misleading. Is it "half as old as me now, which is 33"? or "half as old as me back then"? or "half as old as the age I will be when she is 5 years older than...?" If you will copy it carefully and correctly in the thank-you note form below, I will get back to you by email. There is no charge. Edwin