Flawed ReasoningDiff: Medium
Logic Breakdown
Passage Summary: Since planets don't make light and there are things besides stars and planets out there, some of those 'other' things must make light.
Conclusion: There are objects in the galaxy that produce their own light but are not classified as stars.
Reasoning: Planets only reflect light rather than generating it, and there are many non-planet objects in the galaxy besides stars.
Analysis: The author has committed a major logical error by assuming that if an object isn't a planet, it must generate light. The premises establish that planets reflect light and that non-star/non-planet objects exist, but they never say those 'other' objects (like asteroids or moons) generate light. The argument fails to consider that these other objects could also be light-reflectors. You should look for an answer that highlights this false dichotomy between 'stars' and 'planets' regarding light generation.
Conclusion: There are objects in the galaxy that produce their own light but are not classified as stars.
Reasoning: Planets only reflect light rather than generating it, and there are many non-planet objects in the galaxy besides stars.
Analysis: The author has committed a major logical error by assuming that if an object isn't a planet, it must generate light. The premises establish that planets reflect light and that non-star/non-planet objects exist, but they never say those 'other' objects (like asteroids or moons) generate light. The argument fails to consider that these other objects could also be light-reflectors. You should look for an answer that highlights this false dichotomy between 'stars' and 'planets' regarding light generation.
Passage Stimulus
Passage Redacted
Unlock Full Passage14.The reasoning in the argument is most vulnerable to criticism on the grounds that the argument fails to consider the possibility that
Correct Answer
E
E pinpoints the overlooked possibility: some non-planet celestial objects also do not generate light. If so, then from the fact that there are many non-planet objects, it does not follow that any of them generate light but are not stars.
Upgrade Your Prep
Ready to go beyond free explanations?
LSAT Perfection is the #1 modern LSAT prep platform, trusted by thousands of students for comprehensive test strategies, advanced drilling, and full analytics on every PrepTest.
Detailed explanations for 59 PrepTests
Advanced drillset builder
Personalized analytics
Built-in Wrong Answer Journal