I love both cycling outside when the weather is nice, as well as pounding on a stationary bike at the gym or at home. Both reside under 'cycling' exercises, ye

I love both cycling outside when the weather is nice, as well as pounding on a stationary bike at the gym or at home. Both reside under 'cycling' exercises, yet both are very different. On the 'real' bike I love exploring small country roads and nature trails, something impossible indoors. On the stationary bike I love exploring limits and pushing for new heights on perfectly standardized interval training segments, something that would be extremely dangerous on a real bicycle outdoors. People that love riding stationary bikes get this 'but why don't you just go cycling outside' question a lot. I guess it is the same for people running on treadmills. The answer is it is just different sports/exercises, and you can love them both or just one of them.