To what extent does mass+social media create collective subgroups of consciousness? What's the decay curve of a subgroup and how do subgroups compete, fork, merge or decay?

How do persistent records (oral memories, written records, national holidays, memorials, digital footprints, media archives, censorship) feed back into subgroups of collective consciousness?

How can collective consciousness be measured, monetized, directed, encouraged, suppressed, or otherwise manipulated for specific purposes, within a specific bounded timeframe of a single hour or day?

How do time zones affect the "nature/flavor" of consciousness in each hour, as populations sleep and wake and work and rest and ...?