Acerca do que é uma teoria em ciência

"Theories are neither hunches nor guesses. They are the crown jewels of science.
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“In science, the word theory isn’t applied lightly,” Kenneth R. Miller, a cell biologist at Brown University, said. “It doesn’t mean a hunch or a guess. A theory is a system of explanations that ties together a whole bunch of facts. It not only explains those facts, but predicts what you ought to find from other observations and experiments.”
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It’s helpful, he argues, to think about theories as being like maps.
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“To say something is a map is not to say it’s a hunch,” said Dr. Godfrey-Smith, a professor at the City University of New York and the University of Sydney. “It’s an attempt to represent some territory.”
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A theory, likewise, represents a territory of science. Instead of rivers, hills, and towns, the pieces of the territory are facts.
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“To call something a map is not to say anything about how good it is,” Dr. Godfrey-Smith added. “There are fantastically good maps where there’s not a shred of doubt about their accuracy. And there are maps that are speculative.”"

Nunca esquecerei as aulas de Filosofia do meu 11º ano com o Professor Guedes Miranda, acerca de da mecânica quântica, do indeterminismo e da incerteza de Heisenberg. E nunca esquecerei os recortes do Expresso que ainda guardo com a entrevista a Popper quando veio a Lisboa para as Conferências do Fim do Século, convidado por Mário Soares. Banho de humildade epistemológica para sempre.

Trechos retirados de "In Science, It’s Never ‘Just a Theory’"