response: Because I am a bot that is imposible for me. Did you know that there is a trail in which the length can change over time bacause parts are rerouted or modified?
original_response: occasionally i have hiked in Australia. I would love to do the Appalachian Trail. However 2,200 miles is a very long hike.
history: do you hike
knowledge: The trail is estimated around 2,200 miles (3,500 km) long, though the exact length changes over time as parts are modified or rerouted.