Look back to a particular balmy night in Athens, and you see Steve Parry lining up in lane 4, the fastest qualifier in the Olympic final of the 200m butterfly. A little over 24 hours earlier he was almost at rock bottom, the 16th qualifier from heats and yet here he was shooting for gold. 16 years on from that final how have his recollections changed, and did he really think he could have beaten Michael Phelps?