and if the spokes ever were in compression they'd just buckle anyway. Surprised none of the other engineers have mention this mode of failure yet.
I suggest looking at the London Eye if you still don't get that it's the spoke tension that hangs the hub from the rim above. The London Eye uses flexible steel cables, like giant gear cables, as the "spokes". Try claiming they are in compression 😆
Interestingly because the "rim" is off the ground and it's the hub that is supported, by the ground (unlike a wheel), in this case it is the lower "spokes" that support the "rim" buy stopping it falling away from the hub, i.e. becasue of the tension in the cables.
Hope that doesn't confuse. I find it helps me to get my head around a principle when I look at another example of it applied in a slightly different way.