W turned on his heel and began walking toward the door at the far wall. And by walking I mean, of course, not moving at all, at least not to the naked eye, because his strides could only be measured in micrometers. His creaky legs made barely the tiniest of forward steps, so he’d taken four strides before I noticed any lateral movement at all. “I'll be right back.” “Geologically speaking, of course,” HARV said.