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.

My mother works in a bank, and my dad is the head of my management team and also works in finance.

Faith leaders, young people, American companies, human rights advocates, and many others have demonstrated a unique interest in our Cuba policy. But no community cares more deeply about these issues than Cuban Americans - young and old - who have maintained a profound interest in Cuba and an abiding faith in the Cuban people.

We need to understand the other side to impact the other side. We become much more effective as humans and leaders when we engage in hearty conversations with those who are different from us, not necessarily to change our opinions, but to build the empathy muscle.

Scott Walker has provided some really excellent leadership in Wisconsin.