[rootusrootus]

I've heard it claimed that an ultramarathon is fundamentally a different experience because while it definitely requires excellent physical stamina, it has a large mental component to it, as well as a much bigger focus on nutrition. Very different sort of race, I guess.

[justinwp]

there are multiple cycles from highs to lows and back and then typically a larger dominant split similar what was discussed here for the marathon but scaled to the distance.