[Tallguy]

“The BBJ 777X planes will have a range of 11,645 nautical miles, enabling them to offer the longest commercial flight in the world.”

The average passenger’s max flight endurance is maybe half of that.

[airplaneguy]

Naw. It's not that bad. Ive done a handful of ULH flights (>7000 miles). Its fatigueing but doable.