photo curly osure give write numbers social media question response question post 'friends listed facebook percentage friends dennis asked question friend real life kind link related york times article friends delete today chris brogan posted blog beating dunbar's number dunbar's number refers theory introduced anthropologist robin dunbar brains maintain number stable social relationships exact number apparently agreed number commonly cited mind theory presented decade facebook conceived facebook alters cognitive capacities post brogan suggests social media platforms strategies hand larger social networks managed strategies suggests keeping sort database details straight easily accessible quite imagine creating data base track community imagine readers blog twitter followers brogan database maintain slightly meaningful connection percent people theories strategies definitions apply what's point what's point dennis facebook friends actual friends point chris brogan ways manage version community times larger brains wired handle point guess society understanding community changing significantly rapidly people words definitions changing followers fans count refer friend thing distinguish on-line physical communities people social media circles refer friends real life words confusing confused answered dennis question post friends friends desperately work single definition friend applied people person people post responded related question social media changed understanding community fleshed confusion struggling describe ways feel open true community including people person ways feel old-fashioned details track people live kids we've joked past nagging sense trust accountability missing line bond eating meal live conversation fast-paced world slower brought old-fashioned approaches building community current times characterized bigger faster leave comment left today chris brogan's post interesting post months twitter found number people network matters deliberate intention individual connection words people network collected quickly randomly knowing individual unique interesting feel overwhelmed number general sense chaos attached time examining followers figure they're holding back sort interaction connection meaningful place network mind slower build community deliberate makes dunbar's limit pretty irrelevant 