this. I can walk 2 miles up hill with my son on my back in about 30 minutes without really trying. If I walked at that pace for 12 hours/day it would be around 100 miles after 4 days, so definitely if I put a little more step in it and didn't have 25lbs of baby on my back it would be no problem. Fatass obeast mayodumpster housemate can't even walk 2 minutes without huffing and puffing so of course it's impossible for a fat to do it.