The Eye of the Beholder?
@Auntie Cipation sbm bbm Agreeing w your post: Trevor's vid doesn't make it look super steep, but our perception may be distorted by
camera lens, angles, etc.
And as Shakespeare (or somebody

) said: Beauty and gradients are in the eye of the beholder.
Auto drivers may barely be aware of, or not even notice, a 5% uphill gradient, but that same climb may leave a
cyclist* huffing & puffing, depending on cyclist's condition, etc.
Years ago bicycling for the first time along a road I had frequently driven on, I recall thinking -
Where did this hill come from?
It was never here before. my2ct
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* I don't know the roads or trails around PP, so am not offering facts or opinions specific to them.
How a specific gradient feels "... it really depends on how strong you are and what gearing you are running. First-time climbers might find hills with a 5% gradient challenging at first"
0%: A flat road
1-3%: Slightly uphill but not particularly challenging. A bit like riding into the wind.
4-6%: A manageable gradient that can cause fatigue over long periods.
7-9%: Starting to become uncomfortable for seasoned riders, and very challenging for new climbers.
10%-15%: A painful gradient, especially if maintained for any length of time
16%+: Very challenging for riders of all abilities. Maintaining this sort of incline for any length of time is very painful."
^ Gradients and cycling: an introduction - The Climbing Cyclist