Older movements had to build their organizing capacity first, working over long periods and expending much effort. The infrastructure for logistics they created, using the less developed technology that was available to them at the time, also helped develop their capacity for the inevitable next steps that movements face after their initial events (be it a march, a protest, or an occupation) is over. Modern networked movements can scale up quickly and take care of all sorts of logistical tasks without building any substantial organizational capacity before the first protest or march.
