---
title: "2 Human Lifetime Quotes By Caleb Scharf"
description: "2 Human Lifetime quotes by Caleb Scharf. Plus more from Caleb Scharf and more Human Lifetime sayings from other authors."
image: "https://sms4smile.com/quotes/i/e9e/caleb-scharf-17792_astronomy_we-ve-been-around-for-the-tiniest-sliver_226235.jpg"
---

> [“We've been around for the tiniest sliver of cosmic time, yet our science can already take us across sixty orders of magnitude in scale. To put that in perspective, if the age of the universe were a human lifetime, it…](https://sms4smile.com/quotes/caleb-scharf/we-ve-been-around-for-the-tiniest-sliver-of-cosmic-time-yet-our/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

[Image](https://sms4smile.com/quotes/i/e9e/caleb-scharf-17792_astronomy_we-ve-been-around-for-the-tiniest-sliver_226235.jpg)

> [“There are about 2.5 billion (10^9) seconds in a human lifetime.”](https://sms4smile.com/quotes/caleb-scharf/there-are-about-2-5-billion-10-9-seconds-in-a-human-lifetime/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

[Image](https://sms4smile.com/quotes/i/882/caleb-scharf-17792_seconds_there-are-about-2-5-billion-10-9-seconds_1622573.jpg)

## More by Caleb Scharf

> [“If you were a hapless cosmic hitchhiker stranded between the stars of the Milky Way, your body would represent a concentration of matter a…](https://sms4smile.com/quotes/caleb-scharf/if-you-were-a-hapless-cosmic-hitchhiker-stranded-between-the-stars-of/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“In powers of ten, humans exist almost halfway between the inconceivably big and the unimaginably tiny, and the final plunge from 10^-19 meters to…](https://sms4smile.com/quotes/caleb-scharf/in-powers-of-ten-humans-exist-almost-halfway-between-the/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“The most distant quasars exist in a very young universe, barely a billion years old.”](https://sms4smile.com/quotes/caleb-scharf/the-most-distant-quasars-exist-in-a-very-young-universe-barely-a/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“We've been around for the tiniest sliver of cosmic time, yet our science can already take us across sixty orders of magnitude in scale.…](https://sms4smile.com/quotes/caleb-scharf/we-ve-been-around-for-the-tiniest-sliver-of-cosmic-time-yet-our/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“There are underlying principles at play in nature, from the fields, quanta, and forces of the universe to the ebb and flow of complexity,…](https://sms4smile.com/quotes/caleb-scharf/there-are-underlying-principles-at-play-in-nature-from-the-fields/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“We are accelerating and extending our minds through our computers and algorithms, through our medical prowess and our accumulated knowledge. These minds of ours…](https://sms4smile.com/quotes/caleb-scharf/we-are-accelerating-and-extending-our-minds-through-our-computers-and/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“Remarkably,on the journey from 10^27 meters to 10^23 meters, in just five factors of ten we transition down from the size of the observable…](https://sms4smile.com/quotes/caleb-scharf/remarkably-on-the-journey-from-10-27-meters-to-10-23-meters-in-just/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“The gloriously bright daytime side of the Earth is therefore not just a pretty sight. It signals a relentless absorption of electromagnetic radiation. Earth…](https://sms4smile.com/quotes/caleb-scharf/the-gloriously-bright-daytime-side-of-the-earth-is-therefore-not-just/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“The length of all DNA in your body's cells is 74 billion kilometers (or 193,000 times the distance from the earth to the moon).”](https://sms4smile.com/quotes/caleb-scharf/the-length-of-all-dna-in-your-body-s-cells-is-74-billion-kilometers/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“Our biological awareness seldom strays below a few millimeters or above a few kilometers. That is 6 orders of magnitude out of some 62.”](https://sms4smile.com/quotes/caleb-scharf/our-biological-awareness-seldom-strays-below-a-few-millimeters-or/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“With enough infalling matter, a spinning black hole can convert mass to energy with higher efficiency than even nuclear fusion. The most luminous cases…](https://sms4smile.com/quotes/caleb-scharf/with-enough-infalling-matter-a-spinning-black-hole-can-convert-mass/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“Our cosmic circumstances influence the way we see reality.”](https://sms4smile.com/quotes/caleb-scharf/our-cosmic-circumstances-influence-the-way-we-see-reality/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“Some estimates, based on analyses of the known geometry of space-time, suggest that the "full" universe could extend at least 250 cosmic horizons farther.…](https://sms4smile.com/quotes/caleb-scharf/some-estimates-based-on-analyses-of-the-known-geometry-of-space-time/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“1 Hundred Quadrillion Seconds (10 ^ 17) for light to travel from cosmic horizon to us.”](https://sms4smile.com/quotes/caleb-scharf/1-hundred-quadrillion-seconds-10-17-for-light-to-travel-from-cosmic/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

> [“Bose-Einstein Condensate - Cool objects such as helium atoms to nearly absolute zero and they can clump into a single quantum entity. Individual atoms…](https://sms4smile.com/quotes/caleb-scharf/bose-einstein-condensate-cool-objects-such-as-helium-atoms-to-nearly/)

[Caleb Scharf](https://sms4smile.com/quotes/author/caleb-scharf/)

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