--- title: "Meaning & Key Takeaway of: Our planet has been around only for four…" description: "\"Our planet has been around only for four and a half billion years. Let's imagine a planet that has life on it such as life is on Earth and it's seven b..." image: "https://sms4smile.com/quotes/i/b70/neil-degrasse-tyson-143_billions_our-planet-has-been-around-only-for-four_2916059.png" --- # Our planet has been around only for four and a half… ![“Our planet has been around only for four and a half billion years. Let's imagine a planet that has life on it such as life is on Earth and it's seven billion years old. Let's say that planet evolved intelligence. Well, that intelligence would be way more advanced than what we call intelligence…” quote by Neil deGrasse Tyson](https://sms4smile.com/quotes/i/b70/neil-degrasse-tyson-143_billions_our-planet-has-been-around-only-for-four_2916059.png) [Download](https://sms4smile.com/quotes/i/b70/neil-degrasse-tyson-143_billions_our-planet-has-been-around-only-for-four_2916059.png) [Open image](https://sms4smile.com/quotes/i/b70/neil-degrasse-tyson-143_billions_our-planet-has-been-around-only-for-four_2916059.png) > “Our planet has been around only for four and a half billion years. Let's imagine a planet that has life on it such as life is on Earth and it's seven billion years old. Let's say that planet evolved intelligence. Well, that intelligence would be way more advanced than what we call intelligence here on Earth. How long has intelligence been around on Earth as we've come to define it?” [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. The vast timescales of planetary evolution suggest that any extraterrestrial intelligence would be far older and more advanced than human intelligence. **In simple terms:** Alien intelligence would likely be far older than ours. Key Takeaway Consider the age of intelligence when evaluating extraterrestrial life. Themes cosmology astrophysics exobiology Mood wonder speculation thoughtful Type philosophical inspirational When to use this quote - space exploration - SETI research - philosophical contemplation Key Concepts evolutionary timescales technological disparity Questions to Reflect On - How does time affect the development of intelligence? - What assumptions do we make about alien societies? A Different Perspective Human intelligence is limited by Earth's short history. ★ ★ ★ ★ ★ No ratings yet [Billion Years](https://sms4smile.com/quotes/about/billion-years/) [Billions](https://sms4smile.com/quotes/about/billions/) [Earth](https://sms4smile.com/quotes/about/earth/) [Earth Long](https://sms4smile.com/quotes/about/earth-long-2619951/) [Evolution](https://sms4smile.com/quotes/about/evolution/) [Evolved Intelligence](https://sms4smile.com/quotes/about/evolved-intelligence-795623/) [Four](https://sms4smile.com/quotes/about/four/) [Half](https://sms4smile.com/quotes/about/half/) [Has beens](https://sms4smile.com/quotes/about/has-beens/) [Imagine](https://sms4smile.com/quotes/about/imagine/) [Intelligence](https://sms4smile.com/quotes/about/intelligence/) [Intelligence Earth](https://sms4smile.com/quotes/about/intelligence-earth-1820370/) [Life](https://sms4smile.com/quotes/about/life/) [Life is](https://sms4smile.com/quotes/about/life-is/) [Long](https://sms4smile.com/quotes/about/long/) [Our planet](https://sms4smile.com/quotes/about/our-planet/) [Planet Evolved](https://sms4smile.com/quotes/about/planet-evolved-4225013/) [Planets](https://sms4smile.com/quotes/about/planets/) [Seven](https://sms4smile.com/quotes/about/seven/) [Way](https://sms4smile.com/quotes/about/way/) [Wells](https://sms4smile.com/quotes/about/wells/) [Would be](https://sms4smile.com/quotes/about/would-be/) [Years](https://sms4smile.com/quotes/about/years/) ## Related quotes > [“Emotions are an indicator of evolved intelligence, an optimization of the system to shortcut logic circuits and reduce computational load.”](https://sms4smile.com/quotes/william-hertling/emotions-are-an-indicator-of-evolved-intelligence-an-optimization-of/) [William Hertling](https://sms4smile.com/quotes/author/william-hertling/) > [The issue, as correctly emphasized by Carl Sagan, is the probability of the evolution of high intelligence and an electronic civilization on an inhabited…](https://sms4smile.com/quotes/ernst-mayr/the-issue-as-correctly-emphasized-by-carl-sagan-is-the-probability-of/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [The fact that we have not yet found the slightest evidence for life - much less intelligence - beyond this Earth does not surprise…](https://sms4smile.com/quotes/arthur-c-clarke/the-fact-that-we-have-not-yet-found-the-slightest-evidence-for-life/) [Arthur C. 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