If you wanted to build the most powerful computer you could, you can't do better than including everything in the universe that's potentially available.

Nothing in life is certain except death, taxes and the second law of thermodynamics.

Indeed, as the above calculation indicates, to take full advantage of the memory space available, the ultimate laptop must turn all its matter into energy.

According to the standard model billions of years ago some little quantum fluctuation, perhaps a slightly lower density of matter, maybe right where we're sitting right now, caused our galaxy to start collapsing around here.

In this metaphor we actually have a picture of the computational universe, a metaphor which I hope to make scientifically precise as part of a research program.

If you wanted to build the most powerful computer you could, you can't do better than including everything in the universe that's potentially available.

At some point, Moore's law will break down.

All physical systems can be thought of as registering and processing information, and how one wishes to define computation will determine your view of what computation consists of.

I would suggest, merely as a metaphor here, but also as the basis for a scientific program to investigate the computational capacity of the universe, that this is also a reasonable explanation for why the universe is complex.

Computers are famous for being able to do complicated things starting from simple programs.

In order to figure out how to make atoms compute, you have to learn how to speak their language and to understand how they process information under normal circumstances.

Merely by existing and evolving in time - by existing - any physical system registers information, and by evolving in time it transforms or processes that information.

One of the things that I've been doing recently in my scientific research is to ask this question: Is the universe actually capable of performing things like digital computations?

We have a picture for how complexity arises, because if the universe is computationally capable, maybe we shouldn't be so surprised that things are so entirely out of control.

Something else has happened with computers.

Of course, one way of thinking about all of life and civilization is as being about how the world registers and processes information. Certainly that's what sex is about; that's what history is about.

It's also a reasonable scientific program to look at the dynamics of the standard model and to try to prove from that dynamics that it is computationally capable.

Thinking of the universe as a computer is controversial.

Similarly, another famous little quantum fluctuation that programs you is the exact configuration of your DNA.

I have not proved that the universe is, in fact, a digital computer and that it's capable of performing universal computation, but it's plausible that it is.

Every physical system registers information, and just by evolving in time, by doing its thing, it changes that information, transforms that information, or, if you like, processes that information.

There are considerable advantages to using many degrees of freedom to store information, stability and controllability being perhaps the most important.

If you take a more Darwinian point of view the dynamics of the universe are such that as the universe evolved in time, complex systems arose out of the natural dynamics of the universe.

The amount of information that can be stored by the ultimate laptop, 10 to the 31st bits, is much higher than the 10 to the 10th bits stored on current laptops.

Science consists exactly of those forms of knowledge that can be verified and duplicated by anybody.

Another feature that everybody notices about the universe is that it's complex.

Instead of having to be a member of the Royal Society to do science, the way you had to be in England in the 17th, 18th, centuries today pretty much anybody who wants to do it can, and the information that they need to do it is there.

What's happened with society is that we have created these devices, computers, which already can register and process huge amounts of information, which is a significant fraction of the amount of information that human beings themselves, as a species, can process.

Of course, not everybody's willing to go out and do the experiments, but for the people who are willing to go out and do that, - if the experiments don't work, then it means it's not science.

I'm thinking of going to programming school. Learn how to sit down at any computer and learn to do anything on it. That's all I have left and have interest in.

I said, 'Okay, it's the year 2000, I'm getting a computer and a Palm Pilot.' I know how to check my e-mail, and I've listed some phone numbers on it. Half the time the battery has gone out so I can't use it.

To better understand why you need a personal computer, let's take a look at the pathetic mess you call your life.

I've got a computer, but I won't go near it.

All sorts of computer errors are now turning up. You'd be surprised to know the number of doctors who claim they are treating pregnant men.

All we can do when we think of kids today is think of more hours of school, earlier age at the computer, and curfews. Who would want to grow up in that world?

In OK Computer, the guitar was already moving towards a tone generator as well as a riff generator.

If you put garbage in a computer nothing comes out but garbage. But this garbage, having passed through a very expensive machine, is somehow ennobled and none dare criticize it.

Then in my early teens, when the home computer bubble was blowing, I had one of the first, an Acorn Atom, and used to write primitive adventures on that.

I compose my own stuff. I've been writing songs with words. I've been playing more on the keyboard because I can transpose it to sheet music on the computer.

I always say that my favorite game was Original Adventure, published by both Microsoft and Apple Computer back in 1980.

To err is human - and to blame it on a computer is even more so.

I think computer science, by and large, is still stuck in the Modern age.

It would be nice to design a real briefcase - you open it up and it's your computer but it also stores your books.

I am the farthest thing from a computer genius.

I wish I could have 25,000 years of my personal family history documented in a very powerful computer or a CD-ROM that I could just pop in and my computer would never crash.

The basis of computer work is predicated on the idea that only the brain makes decisions and only the index finger does the work.

In my second year in graduate school, I took a computer course and that was like lightening striking.

Some people may have noticed the new computer shelf at the anchor desk. Rather than phone calls, we want to take real time e-mails, and we'll be starting that very soon.

The cloning of humans is on most of the lists of things to worry about from Science, along with behaviour control, genetic engineering, transplanted heads, computer poetry and the unrestrained growth of plastic flowers.