Alice Beta Paragliding
It is generally agreed that Beta is surreptitiously infiltrating a corporate, military, or criminal facility. However, experts disagree about when and where the paragliding occurred. Beta's motives are also the subject of much dispute.
Many experts believe the illustration depicts her infiltrating the primary ENIAC facility. Critics says temporal drift makes that explanation unlikely; John Brunner "is reasonably confident" that "Baron Zersetzung is behind all this."