Some twenty-eight years ago, I was involved in a serious road accident with my small service van. Fortunately, I came out of it quite unscathed. However, during the following one and a half years or so, I experienced a most intense and strange adventure; so strange that I now look back on it and wonder if it really happened. Perhaps you can decide. Most, if not all, science fiction stories depict very typical human circumstances fantasised by moving them to an imaginary different planet or time or both and prognosticating human technology. "Twice Upon a Time" does this also but there is a...