Everything that is related to science is based on theories. A theory is a tool that explains a phenomenon or tries to, and then it is endorsed by a practical demonstration. No matter what kind of theory we are talking about, atomic theory, gravitation theory or evolution theory, they all derived from a very extensive observation framework or experimental results. Certain theories are taken by people just as a speculation or a guess. A theory cannot be labeled as right or wrong. It puts forward an assertion and is valid irrespective of the domain it approaches. Consequently, the theory of the concepts of evolution has the same validity as the concepts of gravity or atoms.
The emergence of a theory as a process is similar to the snowball effect.
When you throw it away down a vale, it will grow bigger and bigger. That is how a theory is built. Firstly, an observation is made. That observation can raise questions. For example, the mechanism which moves the continents was discovered as a result of an observation made by a child playing a puzzle game. He observed that South America and Africa looked like they could fit together. Alfred Wegener (a German geophysicist and meteorologist) asked the question: What if, in the past, these two continents were affixed? And hence was born the theory of the movement of tectonic plates.
When you throw it away down a vale, it will grow bigger and bigger. That is how a theory is built. Firstly, an observation is made. That observation can raise questions. For example, the mechanism which moves the continents was discovered as a result of an observation made by a child playing a puzzle game. He observed that South America and Africa looked like they could fit together. Alfred Wegener (a German geophysicist and meteorologist) asked the question: What if, in the past, these two continents were affixed? And hence was born the theory of the movement of tectonic plates.
The predictability of something that has not been observed is good way of testing a theory. For example, Einstein predicted that the light will be bent by a large gravitational field. He also predicted that when you take a photograph during an eclipse, it will not be very accurate. The stars will appear slightly out of place. This phenomenon takes place because of the light that is deflected by gravity as it passes the Sun.
A misunderstood fact is that the scientific theories must be proven and at last become facts. Actually these theories will never be proven. We can update them, coming with new information as a result of our progressive search. A simple example is John Dalton's theory regarding the atoms. He set forward this theory in the eighteenth century. Nowadays, that theory is not used anymore and it is likely that our followers will not use it in the future either.
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