Necessary AssumptionDiff: Easy
Logic Breakdown
Passage Summary: A new computer screen uses heat to mimic the dots in Braille, so the author assumes that if you can read Braille by touch, you can read these 'heat dots' just as easily.
Conclusion: Individuals familiar with reading Braille will find it easy to transition to using the new thermal computer screen system.
Reasoning: The new technology utilizes the exact same symbol patterns as traditional Braille, substituting heated patterns on a flat surface for physical raised dots.
Analysis: The argument relies on a significant leap between two different types of sensory perception: pressure and temperature. It assumes that the ability to recognize a pattern via physical bumps (tactile) automatically translates to recognizing that same pattern via heat (thermal). To find the necessary assumption, we must identify a condition that must be true for this transition to work. If, for instance, human fingertips were unable to distinguish heat patterns with the same precision as raised dots, the conclusion would fail. Look for an answer that bridges this gap by confirming the readability of the thermal symbols.
Conclusion: Individuals familiar with reading Braille will find it easy to transition to using the new thermal computer screen system.
Reasoning: The new technology utilizes the exact same symbol patterns as traditional Braille, substituting heated patterns on a flat surface for physical raised dots.
Analysis: The argument relies on a significant leap between two different types of sensory perception: pressure and temperature. It assumes that the ability to recognize a pattern via physical bumps (tactile) automatically translates to recognizing that same pattern via heat (thermal). To find the necessary assumption, we must identify a condition that must be true for this transition to work. If, for instance, human fingertips were unable to distinguish heat patterns with the same precision as raised dots, the conclusion would fail. Look for an answer that bridges this gap by confirming the readability of the thermal symbols.
Passage Stimulus
Passage Redacted
Unlock Full Passage1.Which one of the following is an assumption on which the conclusion depends?
Correct Answer
C
C supplies the missing bridge: people who can discriminate braille symbols by touch can also discriminate similar patterns on a heated flat surface. Negation test: if they cannot discriminate such heat patterns, then braille readers would not be able to adapt easily, directly undermining the conclusion. So this assumption is necessary.
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