"Climate change" is too broad. "How sea levels affect Miami real estate prices" is just right. Knowing how to narrow saves weeks of wasted research. The wide top is broad ideas ("AI").
15 min · Reviewed 2026
The funnel technique
Imagine your topic as a funnel. The wide top is broad ideas ("AI"). The narrow bottom is a specific question ("How GPT-5 changes coding interview prep").
You don't need to start specific — you discover specificity by reading. The first hour of research is mostly about finding the right narrow question.
A real example
"Renewable energy" — too broad
"Solar power" — narrower but still broad
"Solar power for residential homes" — getting there
"Solar power costs for homeowners in 2026 vs 2020" — researchable
"How solar tax credits changed Florida home solar adoption since 2022" — specific and answerable
Signs your topic is too broad
You can find 1,000+ books on it
Wikipedia article is more than 30 pages long
You don't know where to start
Every search returns thousands of results
The big idea: broad topics give vague papers. Narrow topics give sharp papers. Spend the first 30 minutes narrowing.
End-of-lesson check
8 questions · take it digitally for instant feedback at tendril.neural-forge.io/learn/quiz/end-builders-research-narrow-topic
What is the main idea of "Narrowing a Too-Broad Topic"?
"Climate change" is too broad.
Use AI as the final authority for the whole decision
Avoid checking the answer once it sounds polished
Focus only on speed instead of judgment
Which concept is most central to "Narrowing a Too-Broad Topic"?
narrowing
scope
focus
feasibility
Which use of AI fits this topic best?
Let the AI decide what matters without your review
Use the answer before checking whether it fits the situation
"Renewable energy" — too broad
Use the first answer without checking it
What should a careful learner remember about "A 30-minute narrowing exercise"?
Use AI to draft or organize ideas about scope, then verify before acting.
Skip the context so the tool can guess faster
Treat the output as private even after sharing it online
Use the answer without checking the source
You want to use AI after this lesson. What is the safest next step?
Act immediately because the AI answer is written clearly
Use the AI answer as a draft, then check it against a reliable source.
Hide uncertainty so the final answer looks cleaner
Use private or sensitive details before checking permission
How should AI output about scope be treated?
As proof that no other source is needed
As a replacement for context, consent, or expert review
As a draft or helper output that still needs human judgment and verification
As something that becomes correct when it sounds confident
Name one way to verify an AI answer about scope.
Which action would help you apply "Narrowing a Too-Broad Topic" responsibly?
Use the tool to avoid thinking through the tradeoff
Keep going even if the output conflicts with a trusted source
