A Quote by Stephen Hawking
The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?
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Why does the universe go to all the bother of existing?
Science is very good at answering the 'how' questions. 'How did the universe evolve to the form that we see?' But it is woefully inadequate in addressing the 'why' questions. 'Why is there a universe at all?' These are the meaning questions, which many people think religion is particularly good at dealing with.
One might think this means that imaginary numbers are just a mathematical game having nothing to do with the real world. From the viewpoint of positivist philosophy, however, one cannot determine what is real. All one can do is find which mathematical models describe the universe we live in. It turns out that a mathematical model involving imaginary time predicts not only effects we have already observed but also effects we have not been able to measure yet nevertheless believe in for other reasons. So what is real and what is imaginary? Is the distinction just in our minds?
Every kid goes to school full of questions about meaning. You know, 'What's my place in the universe? What does it mean to be a human being? What are human beings?' Existing courses cannot help you answer those questions. They can't even help you ask them.
Any model we make does not describe the universe it describes what our brains are capable of saying at this time.
There is, therefore, no difficulty in answering such questions as these. What cause was there why the Universe was placed in such a part of Space? and, Why was the Universe created at such a Time? for, if there be no Space beyond the Universe, it was impossible that it should be created in another place; and if there was no Time before, it was impossible it should be created at another time.
What distinguishes a mathematical model from, say, a poem, a song, a portrait or any other kind of "model," is that the mathematical model is an image or picture of reality painted with logical symbols instead of with words, sounds or watercolors.
The mathematical question is "Why?" It's always why. And the only way we know how to answer such questions is to come up, from scratch, with these narrative arguments that explain it. So what I want to do with this book is open up this world of mathematical reality, the creatures that we build there, the questions that we ask there, the ways in which we poke and prod (known as problems), and how we can possibly craft these elegant reason-poems.
What does purpose mean? It means the deepest desire for our short lives to mean something. . . . To speak a language of purpose is to return to first principles and to be able to answer, in plain English, the plain questions of Why? Why should we chip in to help someone else? Why should we defer gratification? Why should we care about the long term? Why should we trust anyone who seems to be limiting our ability to do what we want?
We each create a story - a narritive, a picture, an allegory, a model - for what's going on in the universe. And then we fight - sometimes to the death - to make others believe in that model, or to be able to keep believing in it ourselves. In other words, we try to erase contradictory evidence to that model.
There are big questions science doesn't answer, such as why is there something rather than nothing? There can't be a scientific answer to that because it's the answer that precedes science.
Corporations must answer questions about why they should be in the blogosphere. Small Businesses need to answer questions about why they shouldn't.
Why is the sky blue? Why is the grass green? Why is metal a conductor of electricity, and wood is not, but you're more likely to be struck by lightning when standing under a tree? These are questions that require science to answer.
The universe has a much greater imagination than we do, which is why the real story of the universe is far more interesting than any of the fairy tales we have invented to describe it.
Because there is a law such as gravity, the Universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the Universe exists, why we exist. It is not necessary to invoke God to light the blue touch paper and set the Universe going.
I believe there are no questions that science can't answer about a physical universe.
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