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There are a lot of rich people in the world. There are very few people who have the privilege of getting to invent things that billions of people use.

"David Karp, founder of Tumblr, on realising his dream". Interview With Josh Halliday, www.theguardian.com. January 29, 2012.
There are a lot of rich people in the world. There are very few people who have the privilege of getting to invent things that billions of people use.