Logic!

1) Go out to the field.
2) Place two low supports (1 meter high) on the ground and 8 meters apart.
3) Now place two pieces of pipe, one 24" (DN600) and one 2" (DN 50) spanning across the two supports.
4) Now get up on top and walk across the 24" pipe and then walk back across to 2".
5) Did you notice any difference between the flexibility of the two pipes?