The most important application of quantum computing in the future is likely to be a computer simulation of quantum systems, because that's an application where we know for sure that quantum systems in general cannot be efficiently simulated on a classical computer.


David Deutsch

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DAVID CASSIDY
All I had done for five years was work 18 hours a day all over the world. I needed to step back and ...
DAVID CASSIDY
Everything in my life was about performance when I was doing 'The Partridge Family.'
DAVID CASSIDY
My mother, Evelyn, was an actress and singer, and my father, Jack, was an actor. My earliest recolle...
DAVID CASSIDY
Once they began doing 'Celebrity Apprentice,' apparently the audience wasn't that keen o...
DAVID CASSIDY
My music was never considered cool, but I've always felt that connection with the audience.
DAVID CASSIDY
I've always had a special relationship with the U.K. fans, because even when I wasn't workin...
DAVID CASSIDY
My dad left when I was 3 1/2, and he left my mom and I.
DAVID CASSIDY
I don't play nostalgia acts. I don't play nostalgia shows.
DAVID CASSIDY
I don't need to remind myself of the trophies. I know what I accomplished.
DAVID CASSIDY
What I want is credibility I got as a songwriter and actor and doing 'Blood Brothers' on Bro...
DAVID CASSIDY
In the '80s, it was difficult and frustrating to appear in the theater and TV again, even though...
DAVID CASSIDY
All that stuff - 'teen idol' - that wasn't me.
DAVID CASSIDY
I wasn't ever a bad guy, and I was never arrested or anything like that, but I was a wild boy in...
DAVID CASSIDY
I saw Jimi Hendrix - it must have been four times. And he was incomparable, and his legend lives on.
DAVID CASSIDY
Acting was absolutely my first focus. I graduated high school in L.A., and two weeks afterwards, I m...
DAVID CASSIDY
I've really sensed that people have an affection for me.
DAVID CASSIDY
I've done an enormous amount of bringing light into people's lives, and I'm very proud o...
DAVID CASSIDY
I bought my first horse when I was 15. I always loved racing and I started studying about breeding a...
DAVID CASSIDY
I've always had a love for horses since I was really young. When I was 5 years old, the only thi...
DAVID CASSIDY
My mother gave up a good part of her career to look after me.
DAVID CASSIDY
In a very short period of time, actors can become kind of relevant and hot.
DAVID CASSIDY
I played in garage bands and rock and roll bands when I was in junior high and high school and saw s...
DAVID CASSIDY
I found myself very lost after 'The Partridge Family,' and I lost my dad and I lost my manag...
DAVID CASSIDY
I've been able to go on and have a successful career on Broadway and certainly the last five yea...
DAVID CASSIDY
It's not about the fame and the money because if you do good work all that stuff comes.
DAVID CASSIDY
We live in a world of strange priorities, where Kim Kardashian buying a Lamborghini creates internat...
DAVID HAREWOOD
The law always limits every power it gives.
DAVID HUME
There are some four million different kinds of animals and plants in the world. Four million differe...
DAVID ATTENBOROUGH
Life to me is a journey - you never know what may be your next destination.
DAVID RUSSELL
False modesty can be worse than arrogance.
DAVID MITCHELL
This whole world is wild at heart and weird on top.
DAVID LYNCH
I believe that the war on drugs is a tragically misplaced use of resources - an immoral venture that...
DAVID HARSANYI