Board Thread:Suggestions forum/@comment-82.174.232.120-20160105180614/@comment-26298013-20160105212958

Just so you know, Dwarves, Elves, and the Dunedain are not (Completely, at least) human. They are faster, tougher, and can endure longer than any human alive today. Most Elves, especially warriors, could have done what Aragorn led them to do, especially because Elves can rest as they walk. Dwarves are a ridiculously hardy race, the movies underrepresent their capabilities.

It takes 10 days without sleep to kill an average human. Three or four days of constant exertion, however, would probably stress and strain muscles, tear some stuff you don't want torn, but not kill you. There are penalties for pushing yourself to the limits, but it would probably not be lethal (Without other contributing factors).

As to the suggestion, lembas does seem underpowered, though 16 minutes worth is actually something like a day and a half's worth of travelling time. Because you can travel constantly in Minecraft 16 minutes (Three quarters of a day/night cycle in the mod, I think) of travel is a ridiculously long travel time.