In my opinion, Katie Ledecky has certainly made a strong case for being the greatest swimmer of all time. Her record-breaking performances and multiple Olympic gold medals are a testament to her undeniable talent and relentless work ethic. She has consistently pushed the boundaries in her sport, raising the bar for future generations. However, it's always tricky to compare athletes from different eras and disciplines. It's safe to say though, that Ledecky is in the running for the title, and has left an indelible mark on swimming history.