
The Limits of Science: Where Does Knowledge End and Curiosity Begin?
Article Level: C2
Explanation: This article explores the boundaries of science and highlights how curiosity begins where scientific understanding ends. It discusses topics like consciousness, time, and ethics, showing that while science answers “how”, curiosity compels us to ask “why”.
Read more: The Limits of Science: Where Does Knowledge End and Curiosity Begin?Commonly Used Words from the Article
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Empirical /ɛmˈpɪrɪkəl/ (adjective): Based on observation or experience rather than theory or pure logic.
Scientific claims must be supported by empirical data. -
Speculation /ˌspɛkjʊˈleɪʃən/ (noun): The forming of a theory or conjecture without firm evidence.
The origins of consciousness remain a matter of speculation. -
Quantification /ˌkwɒntɪfɪˈkeɪʃən/ (noun): The act of measuring or expressing something as a quantity.
Emotions are difficult to subject to quantification. -
Enigma /ɪˈnɪɡmə/ (noun): A person or thing that is mysterious or difficult to understand.
Consciousness continues to be an enigma for neuroscientists. -
Ethical /ˈɛθɪkəl/ (adjective): Relating to moral principles or the branch of knowledge dealing with these.
Ethical dilemmas arise with the development of AI.
Audio File of the Article

The Limits of Science: Where Does Knowledge End and Curiosity Begin?
Science, for all its precision and power, is not limitless. It has mapped galaxies, unlocked the atom, and charted the genome. Yet, despite these triumphs, certain questions remain maddeningly beyond its reach. Where science ends, curiosity often begins – not as a flaw, but as a necessary feature of our intellectual evolution.
At its core, science is a method – systematic, empirical, and repeatable. It thrives in the observable and the measurable. But what of consciousness, meaning, or the possibility of multiple universes? These enigmas lie outside the empirical realm, prompting both scientists and philosophers to tread cautiously. As we inch towards the edges of knowledge, we encounter territories that resist quantification, demanding speculation, imagination, and sometimes even belief.
Consider the concept of time. Physics can describe it, measure it, and even manipulate our understanding of it through theories like relativity. Yet no scientific law fully explains why time flows in one direction or why we experience it at all. In such gaps, human curiosity steps in, asking “why” when science can only answer “how”.
This intersection between science and curiosity is not a failure of science but a reminder of its human origin. It reflects the distinction between facts and meaning. Science can tell us what the universe is made of, but not necessarily why it exists. Such philosophical questions, though beyond scientific proof, are no less important. In fact, they often inspire the next great scientific leaps.
Moreover, there are ethical and existential inquiries science alone cannot resolve. For example, just because something can be done – gene editing, artificial intelligence, space colonisation – does not mean it should be done. Here, we require the guidance of ethics, culture, and human values, which lie outside the laboratory.
The limits of science, therefore, should not dishearten us. Instead, they should remind us that the pursuit of knowledge is never truly complete. Each discovery opens new doors and reveals deeper mysteries. Curiosity ensures that we keep asking questions, even when answers are elusive. It is the fuel for both scientific exploration and philosophical reflection.
Ultimately, it is in the interplay between science and curiosity that humanity finds its most profound insights. Science defines the boundaries of what we know; curiosity dares us to dream beyond them.

Grammar Notes
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Grammar Focus: Complex Sentences & Modality
The article uses a variety of complex sentences with subordinate clauses, along with modal verbs such as can, should, and may to express possibility, obligation, and speculation.Example:
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Just because something can be done… does not mean it should be done.
Here, can expresses ability, while should implies moral obligation.
Lesson Tip:
Use modal verbs to introduce nuance in argumentation – a crucial skill at C2 level. Also, develop fluency with linking ideas using complex clauses to express contrast, cause, and condition. -

Five Questions Based on the Article
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Why is curiosity considered a complement rather than a flaw in scientific exploration?
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What does the article suggest about the scientific limitations of understanding time?
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In what ways does the article distinguish between science and philosophy?
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How does the article propose ethical concerns differ from scientific capability?
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What message does the article convey about the ongoing nature of human inquiry?

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