This article is part 4 of a series by Steven Levy about Google research. I rather like Levy's writing so I wanted to find parts 1, 2, 3 as well.

The navigation to earlier parts of the series seems broken to me (Iceweasel/Debian Sid/noscript set to allow page) so I backed up to the front page and found the links...

Part 1

https://medium.com/backchannel/how-google-search-dealt-with-...

Part 2

https://medium.com/backchannel/googles-secret-study-to-find-...

Part 3

https://medium.com/backchannel/google-search-will-be-your-ne...

Part 4

https://medium.com/backchannel/the-deep-mind-of-demis-hassab...