FKT (Fastest Known Times) are becoming popolar in mountaineering and trail running.
It basically means the shortest time to walk/run/climb or a mix of those from point A to point B (typically from the base camp to the top of a mountain). The route taken does not matter: just the shortest time to go from A to B.
Strava segments are very poor at measuring FKTs: as they were designed for road biking they take into account the route taken and if the trail runner attempting the FKT does not take exactly the same route of the previously crated segment his FKT attempt will not be recognized.
My proposal is to create a different type of segments, called "FKT Segments", that take into account just start point (point A) and end point (point B) without taking into account the route taken. Any activity that passes thought point A and B will trigger the FKT segment time.