How much would you have to cycle for comfort?
Watch this video: https://www.youtube.com/watch?v=S4O5voOCqAQ
In the video, the bicycle racer with very muscular legs can only maintain the 700 W performance for operating the toaster for only for about a minute. A top sportsman (for example, a competitor at Tour de France) can maintain around 200 W performance for longer (for an entire race, meaning for multiple hours).