A lot of what I experienced growing up in the U.S.S.R. and coming to the U.S. as an immigrant actually reflects itself in Whatsapp. Experiences from our youth shape what we do later in life.

Advertising isn't just the disruption of aesthetics, the insults to your intelligence and the interruption of your train of thought. At every company that sells ads, a significant portion of their engineering team spends their day tuning data mining, writing better code to collect all your personal data.

As long as our user base continues to grow, at some point it will have critical mass, and at some point it will tip, and at some point, people will just have to use WhatsApp because their friends are using WhatsApp.

I had so much fun in early days learning about networking, security, scalability and other geeky stuff.

The natives of Silicon Valley learned long ago that when you share your knowledge with someone else, one plus one usually equals three. You both learn each other's ideas, and you come up with new ones.

In high school, a teacher's friend in the police department asked me to go into a bar and flash a fake ID saying I was 21 even though I wasn't. They were assuming the bar wasn't carding people. Anyway, she forgot to ask for it back. I used it all freshman year in college.

The most important thing when you study hypnosis is that you learn that humans are irrational. Until you understand that, hypnosis is hard to do... For me, it was this great awakening to understand that humans are deeply irrational, and it's probably the greatest influence on me in terms of my writing.

I didn't have very many friends growing up. I was very much a nerd. I read comic books, and I wanted to do well in school.