How to Tell What’s Real Online, by Neil deGrasse Tyson

https://m.youtube.com/watch?v=o4I_hOz_MLw

How to Tell What’s Real Online

StarTalk

Nov 27, 2025

In a world overflowing with opinions, clips, conspiracies, and AI-generated answers, how do you know what’s actually true? Neil deGrasse Tyson breaks down his personal checklist for navigating the modern information landscape—yellow flags, red flags, and why evidence-based thinking matters more than ever. From scientific claims and podcasts to clipped videos and industry commentary, Neil shows you how to separate signal from noise and think like a scientist in the digital age.

How do you tell what’s real? Neil deGrasse Tyson breaks down how to tell which sources are trustworthy and which yellow flags to look out for. In an age of so much information, how do you parse what’s real and what’s misinformation?

00:00 - What to Trust

00:45 - AI for Research

01:50 - The Influence of Industry

04:15 - Telling You How You Should Feel

5:34 - Content Lifted From Its Source

7:00 - Further Research

9:00 - Conspiracy Theories

10:21 - Is “Mainstream” a Bad Word?

11:18 - Indicting Demographics

13:15 - Laws of Physics, Inventions, & Aliens

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