Question: What do Craigslist and Albert Einstein have in common?
Answer: Their big idea started as a side project.
1905. Albert Einstein worked six days a week full-time in an office, examining patent applications. He dedicated all his remaining hours to studying and experimenting with physics. One day, the Theory Of Relativity was conceived — completely off-the-clock.
1993. Craig Newmark, employed at an investment company, started an email list in his spare time to allow him and his friends to update each other about different events in town. Eventually, the list grew so much that there wasn’t enough space in people’s inboxes: it was time for a website. Enter Craigslist.com.