Michio Kaku

I vowed to myself that when I grew up and became a theoretical physicist, in addition to doing research, I would write books that I would have liked to have read as a child. So whenever I write, I imagine myself, as a youth, reading my books, being thrilled by the incredible advances being made in physics and science.

American Physicist

Hans Adolf Krebs

The research I have been doing - studying how foodstuffs yield energy in living cells - does not lead to the kind of knowledge that can be expected to give immediate practical benefits to mankind. If I have chosen this field of study, it was because I believed in its importance in spite of its theoretical character.

German Physicist

Lisa Randall

What I do is very theoretical. It won't necessarily have implications for anything anyone is doing tomorrow, yet you know that there's a sense of progress in science, and as we understand more, it just turns out that, somehow, the world evolves with us.

Alexandra Petri

Any promising young white man rich enough to theoretically afford a giant oil painting of himself gets to remain young and innocent forever, and none of his actions have any consequences, whether there is magic involved or not.

American Journalist

Rakesh Sharma

Theoretically, there are planets with an environment that can support life. As yet there is no evidence that there indeed is life on other planets. It's only a matter of time before we get to know.

Indian Astronaut

Bertrand Russell

The theoretical understanding of the world, which is the aim of philosophy, is not a matter of great practical importance to animals, or to savages, or even to most civilised men.

British Philosopher

Salman Rushdie

When I'm writing a book, sentence by sentence, I'm not thinking theoretically. I'm just trying to work out the story from inside the characters I've got.

Indian Novelist

Carl Jung

Everyone knows nowadays that people 'have complexes'. What is not so well known, though far more important theoretically, is that complexes can have us.

Swiss Psychologist

Adam Pascal

I've always really been into science, and in the last five years I've gotten into theoretical physics and the origins of the universe.

American Actor

Esther McVey

Life is not a theoretical problem to be solved in class.

British Politician

The term underscores that a concept awaits real-world testing or evidence.

Proven in Practice

Implies ideas are between hypothesis and practical reality, yet unconfirmed.

Transition Stage

Often used when discussing ideas that will later be tested experimentally.

Experimental Association

Highlights a focus on thinking over doing or experiencing.

Abstract Reasoning

Stresses absence of direct real-world use or implementation.

No Practical Application

Indicates knowledge gained from study rather than practical experience.

Academic Distinction

Suggests the information is not typically used in daily activities.

Beyond Everyday Use

Use when referring to knowledge gained through formal schooling.

Educational Context

 How is this possible? How is it that the states of cats on opposite sides of the universe can be entangled in this way? They're too far away to communicate with each other in time, so how do the two bombs always conspire such that one blows up and the other doesn't? You might be thinking, "This is just some theoretical mumbo jumbo.

What can Schrödinger's...

 that the result might pass the Lovelace Test. More importantly, thanks to the presence of human aesthetic in the process, we'll theoretically generate melodies we would consider beautiful. But does this satisfy our intuition for what is truly creative? Is it enough to make something original and beautiful,

Can robots be creative?...

 we'd theoretically decide to invest in choices only to the point they're useful or enjoyable. Of course, how effectively any of us manage to maximize utility in real life is another matter. But it helps to remember that the ultimate source of value comes from us, the needs we share, the things we enjoy,

The paradox of value -...

 this bump could have appeared by a statistical fluke. So back to the dark matter. If the LHC's proton beams have enough energy to produce it, that's probably an even rarer occurrence than the Higgs boson. So it takes quadrillions of collisions combined with theoretical models to even start to look.

Could we create dark...

 of extreme file so this is a type of life that can survive in and might even actually require these kind of extreme conditions but how do we go about studying this weird theoretical Martian life well I look at the only life we have an example of life on Earth and

What does an alien look...

 the frequency of a specific outcome, like a player two win, will approach its theoretical probability, that value we got by writing down all the possibilities and counting up the ones for each outcome. So, if you sat on that desert island playing dice forever,

The last banana: A...

 Now, of course, Babbage's machine was entirely mechanical. Turing's machine was entirely theoretical. Both of these guys were coming from a mathematical perspective, but Turing told us something very important. He laid down the mathematical foundations

John Graham-Cumming: The...

 to measure the sticking power of one single hair from it and to do that you needed the techniques borrowed from the most advanced physics like these the results were astonishing they discovered that theoretically a gecko walking

Sticky Gecko Feet PIPE...

 existing whether we find its truths or not? Are numbers, polygons and equations truly real, or merely ethereal representations of some theoretical ideal? The independent reality of math has some ancient advocates.

Is math discovered or...

 approximately the length of a human's entire life. This orbit causes each season of Uranus to last that much longer. Theoretically, a human living on Uranus would experience the four seasons only once,