@samplereality: In #HNRS353 today I argued that elevators are essentially mechanical portals, a metaphor that PORTAL itself encourages. – 10 Apr 12 23:43

@JLil18: Elevators 21st century Portals? #HNRS353 #Portal – 10 Apr 12 23:02

@krystinhope: Portal in class. #HNRS353 – 10 Apr 12 16:27