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Why It’s IMPOSSIBLE to Ever Prevent an Asteroid Impact | Brian Greene | The Sciences Of Reality
🌌 Hook & Intro

☄️ What if humanity’s greatest technology is still powerless against a single rock from space?
In this mind-expanding scientific lecture, Brian Greene explores the deep physical, cosmic, and probabilistic limits that make preventing an asteroid impact fundamentally impossible in many scenarios. From orbital mechanics and chaos theory to detection limits and reaction time, this video reveals why the universe does not negotiate—and why uncertainty is built into reality itself. This is not science fiction. This is real physics.

⏱️ Video Duration

Video Duration: 53 Minutes

🧠 Chapters

00:00 – Introduction: The asteroid threat humanity cannot fully control
05:42 – How asteroid detection actually works (and its limits)
12:30 – Orbital mechanics and why small errors become disasters
19:15 – Reaction time: why “early warning” is not enough
26:40 – Chaos theory and unpredictable cosmic trajectories
34:05 – Why technology cannot override fundamental physics
41:20 – Probability, risk, and unavoidable uncertainty
48:10 – Final insight: living in a universe without guarantees

🔬 Key Highlights

Why asteroid detection is inherently incomplete, even with modern telescopes

How chaos theory makes long-term asteroid prediction unreliable

The physical limits of deflection technologies like nuclear or kinetic impactors

Why reaction time is often shorter than our ability to respond

What asteroid risk teaches us about uncertainty, physics, and reality itself

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⚖️ Copyright Disclaimer

Copyright Disclaimer (Fair Use):
This video is made for educational and informational purposes only. Content is used under the Fair Use doctrine for commentary, criticism, research, and teaching.

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