American writer (born 1938)
I myself have dreamed up a structure intermediate between Dyson spheres and planets. Build a ring 93 million miles in radius - one Earth orbit - around the sun. If we have the mass of Jupiter to work with, and if we make it a thousand miles wide, we get a thickness of about a thousand feet for the base.
And it has advantages. The Ringworld will be much sturdier than a Dyson sphere. We can spin it on its axis for gravity. A rotation speed of 770 m/s will give us a gravity of one Earth normal. We wouldn't even need to roof it over. Place walls one thousand miles high at each edge, facing the sun. Very little air will leak over the edges.
Lord knows the thing is roomy enough. With three million times the surface area of the Earth, it will be some time before anyone complains of the crowding.
There were timelines branching and branching, a mega-universe of universes, millions more every minute. Billions? Trillions? The universe split every time someone made a decision. Split, so that every decision ever made could go both ways. Every choice made by every man, woman, and child was reversed in the universe next door.
There had been a popular joke on Freedom, started by a man named Calder. Looking down from space, he had said, the dominant life forms on Earth were obviously the cereals and other grasses. They occupied all the most desirable and fertile land; and they had tamed insects and animals to care for them. In particular, they had domesticated the bipeds to nurture and cultivate them and to save and plant their seed. Now, watching the farmers, Alex could easily imagine that they were worshiping and genuflecting before their masters.
Long ago, Louis Wu had stood at the void edge of Mount Lookitthat. The Long Fall River, on that world, ends in the tallest waterfall in known space. Louis's eyes had followed it down as far as they could penetrate the void mist. The featureless white of the void itself had grasped at his mind, and Louis Wu, half hypnotized, had sworn to live forever. How else could he see all there was to see?
Now he reaffirmed that decision.
"1. a.Never throw shit at an armed man.
b.Never stand next to someone who
is throwing shit at an armed man.
2.Never fire a laser at a mirror.
3.Mother Nature doesn't care if you're having fun.
4.F × S = k. The product of Freedom and Security is a constant. To gain more freedom of thought and/or action, you must give up some security, and vice versa.
5.Psi and/or magical powers, if real, are nearly useless.
6.It is easier to destroy than create.
7.Any damn fool can predict the past.
8.History never repeats itself.
9.Ethics change with technology.
10.There Ain't No Justice. (often abbreviated to TANJ)
11.Anarchy is the least stable of social structures. It falls apart at a touch.
12.There is a time and place for tact. And there are times when tact is entirely misplaced.
13.The ways of being human are bounded but infinite.
14.The world's dullest subjects, in order:
a.Somebody else's diet.
b.How to make money for a worthy cause.
c.The Kardashians.
15.The only universal message in science fiction: There exist minds that think as well as you do, but differently.
Niven's corollary: The gene-tampered turkey you're talking to isn't necessarily one of them.
16.Fuzzy Pink Niven's Law: Never waste calories.
17.There is no cause so right that one cannot find a fool following it.
in variant form in Fallen Angels as "Niven's Law: No cause is so noble that it won't attract fuggheads."
18.No technique works if it isn't used.
19.Not responsible for advice not taken.
20.Old age is not for sissies."