Hal, of course, spoke to each one.

'Good future to you, Ericssen!'

'Sigmen smile, Yarrow!'

'Did you have a bright dream, Chang?'

'Shib, Yarrow! Straight from truth itself.'

'Shalom, Kazimuru.'

'Sigmen smile, Yarrow!'

Then Hal stood by the lift doors while a keeper, on duty at this level in the morning because of the crowd, arranged the priority of their descent. Once out of the tower, Hal stepped onto a series of belts with increasingly swift speed until he was on the express, the middle belt. Here he stood, pressed in by the bodies of men and women but at ease because they belonged to his class. Ten minutes of travel, and he began to work his way through the crowd from belt to belt. Five minutes later, he stepped off onto the sidewalk and walked into the cavernous entrance of Pali No. 16, University of Sigmen City.

Inside, he had to wait, though not for long, until the keeper had ushered him into the lift. Then, he went straight up on the express to the thirtieth level. Usually, when he got out of the lift, he went directly to his own office to deliver his first lecture of the day, an undergraduate course which went out over tridi. Today, Hal headed for the dean's office.

On the way, craving a cigarette and knowing that he could not smoke it in Olvegssen's presence, he stopped to light one and to breathe in the delicious ginseng smoke. He was standing outside the door of an elementary class in linguistics and could hear snatches of Keoni Jerahmeel Rasmussen's lecture.

'Puka and pali were originally words of the primitive Polynesian inhabitants of the Hawaiian Islands. The English-speaking people who later colonized the islands adopted many terms from the Hawaiian language; puka, meaning hole, tunnel, or cave, and pali, meaning cliff, were among the most popular.

'When the Hawaiian-Americans repopulated North America after the Apocalyptic War, these two terms were still being used in the original sense. But, about fifty years ago, the two words changed their meanings. Puka came to be applied to the small apartments allotted to the lower classes, obviously in a derogatory sense. Later, the term spread to the upper classes. However, if you are a hierach, you live in an apartment; if you belong to any class below the hierarchy, you live in a puka.