# Quote — Max Tegmark, Our Mathematical Universe

> What is real? Is there more to reality than meets the eye? Yes! was Plato’s answer over two millennia ago. In his famous cave analogy, he likened us to people who’d lived their entire lives shackled in a cave, facing a blank wall, watching the shadows cast by things passing behind them, and eventually coming to mistakenly believe that these shadows were the full reality. Plato argued that what we humans call our everyday reality is similarly just a limited and distorted representation of the true reality, and that we must free ourselves from our mental shackles to begin comprehending it.

- Author: [Max Tegmark](https://www.leafyquotes.com/max-tegmark.md)
- Book: [Our Mathematical Universe](https://www.leafyquotes.com/max-tegmark/our-mathematical-universe.md)
- Source: [Wikiquote](https://en.wikiquote.org/wiki/Max_Tegmark#Our_Mathematical_Universe:_My_Quest_for_the_Ultimate_Nature_of_Reality_(2014)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/max-tegmark/our-mathematical-universe/what-is-real

## More from this book

> The very fabric of our physical world, space itself, could be a purely mathematical object in the sense that its only intrinsic properties are mathematical... as dimensionality, and topology.

[Quote page](https://www.leafyquotes.com/max-tegmark/our-mathematical-universe/the-very-fabric.md)

> In 1814... Joseph von Fraunhofer invented... a spectrograph, which let him separate white light into into a rainbow of colors... He discovered mysterious dark lines in the rainbow... and... the detailed positions of these lines... depended on what the light source was made of, constituting a kind of spectral fingerprint. During the following decades such spectra were measured and catalogued for many... substances. ...Sensationally, the spectrum of sunlight revealed that the Sun... contained elements... such as . Moreover... it revealed that stars are made of roughly the same mixture of gases as the Sun! This clinched it in favor of Bruno: stars are distant suns...

[Quote page](https://www.leafyquotes.com/max-tegmark/our-mathematical-universe/in-1814-joseph.md)

> But I’ve suddenly changed my mind and turned more optimistic about our cosmic significance. Why? Because I’ve come to believe that advanced evolved life is very rare, yet has huge future potential, making our place in space and time remarkably significant.

[Quote page](https://www.leafyquotes.com/max-tegmark/our-mathematical-universe/but-ive-suddenly.md)