The modern ("two-track") system was designed to be less disruptive to the Senate overall because it allows votes to happen on other, non-controversial bills while the filibuster is ongoing.

Thanks. Seems it was put in place in the 1970s after the filibuster of a civil rights bill.

Still think they should make someone talk somewhere to keep the filibuster going. Cure seems worse than disease. Doubt they expected routine filibusters