![](https://dzxvl9yos1z5q.cloudfront.net/uploads/avatars/2022/thumb.png?v=63764288590)
Writes about the history of technology & industry at @rootsofprogress. Part-time tech consultant to @OurWorldInData. Former engineering manager & tech founder
![](/images/content_types/article-fc082f9eae77e53eb75d4ec5af43cc75.png?vsn=d)
Article
Oct, 2012
![](/images/content_types/article-fc082f9eae77e53eb75d4ec5af43cc75.png?vsn=d)
Writes about the history of technology & industry at @rootsofprogress. Part-time tech consultant to @OurWorldInData. Former engineering manager & tech founder