# Quote — Ray Kurzweil, The Age of Spiritual Machines

> The speed and density of computation have been doubling every three years (at the beginning of the twentieth century) to one year (at the end of the twentieth century), regardless of the type of hardware used. ...Despite many decades of progress since the first calculating equipment was used in the 1890 census, it was not until the mid-1960s that this phenomenon was even noticed (although Alan Turing had an inkling of it in 1950).

- Author: [Ray Kurzweil](https://www.leafyquotes.com/ray-kurzweil.md)
- Book: [The Age of Spiritual Machines](https://www.leafyquotes.com/ray-kurzweil/the-age-of-spiritual-machines.md)
- Source: [Wikiquote](https://en.wikiquote.org/wiki/Ray_Kurzweil#The_Age_of_Spiritual_Machines:_When_Computers_Exceed_Human_Intelligence_(1999)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/ray-kurzweil/the-age-of-spiritual-machines/the-speed-and

## More from this book

> A primary reason that evolution—of life-forms or technology—speeds up is that it builds on its own increasing order.

[Quote page](https://www.leafyquotes.com/ray-kurzweil/the-age-of-spiritual-machines/a-primary-reason.md)

> Before the next century is over, human beings will no longer be the most intelligent of capable type of entity on the planet.

[Quote page](https://www.leafyquotes.com/ray-kurzweil/the-age-of-spiritual-machines/before-the-next.md)

> Order... is information that fits a purpose.

[Quote page](https://www.leafyquotes.com/ray-kurzweil/the-age-of-spiritual-machines/order-is-information.md)