Instagram succeeded for many good reasons, including its design, its viral qualities, its simplicity, and the fact that its engineers focused so obsessively on making sure that it works all the time. Part of its success, no doubt, is the fact that it was just in the right place, at the right time, with the right, crowd-pleasing mix of features.

On why the ‘Zombies, Run!’ is $8 instead of $1, and why it works.

“I love entrepreneurship, and I love tech startups, but sometimes I'm struck by the lack of perspective that many tech entrepreneurs have about creating a startup. One of the most common things that entrepreneurs in the tech sector lose sight of is that most companies never get venture capital funding, especially outside of the technology world. That's not to say that VC hasn't played an important rule in the growth of many of the biggest and best companies, sites and apps. It's just not the only option.”