[kazinator]

The saddle shown in the "Anatomy of a Saddle" picture doesn't seem very good to me.

One problem is that the sitting area has a convex profile.

Your sit bones should be placed on horizontal surfaces, like this - -. This thing is more like / \. What that does is drive a wedge between the bones under the weight of the rider, which is bad for the pelvis.

[jerlam]

Keep in mind that enthusiast cyclists are not sitting upright on their bicycles, like a chair. Their torsos are rotated 45 degrees or even more horizonally for aerodynamics. Their legs are constantly pedaling and pushing against the front of the saddle, so they look like they are convex even though the rider should not be sitting on that part of the saddle. Realistically, only the rear third of the saddle should bear any weight.