Lack that happens to you is out of your control, but each person can work on maximizing their personal luck.

Sahil didn't just watch "The Social Network" and move to Silicon Valley to start a company. Instead, he spent time to build apps, to write about them, to share them. He took time to advice strangers, without looking for anything in return. That led to him getting a job at Pinterest, brought him closer to the valley, connected him with founders and investors, and eventually opened all the right doors.

Friends become friends over time. Same way, luck converts over time.