Nir’s Note: This guest post is by Dr. Marc Lewis, who studies the psychology and neuroscience of addiction. After years of active research, Marc now talks, writes, and blogs about the science and experience of addiction and how people outgrow it. Visit his website here. 

You’ve just obliterated the last seven or eight zombies. It was a narrow escape and you’re flushed with satisfaction. But you didn’t see that horrendous creep, weaping sores and oozing pus, because he was hidden behind the dustbin in the shadow of a bombed out building. You get slimed, you’re dead. Or worse than dead. So you touch the “play again” bar at the bottom of the screen. Now you start further ahead than last time. You know you’re going to meet the slime-master again. Soon. Be prepared.</

Nir’s Note: This guest post is by Paulette Perhach. Paulette writes about finances, psychology, technology, travel, and better living for the likes of The New York Times, Elle, and Slate.

I learned how to respect authority from my father. At the top of a huge water slide at a theme park, he put me, my siblings and cousins in a huge, round raft, then started to get in himself. “No sir, that’s too many,” said the attendant. My father simply replied, “Hup, too late!” Then jumped in and shoved off. We caught air on the bumps, making the ride much more wild than it would have been, had we followed the rules.

Dodging the regulations of anyone with a whistle or a name tag became my favorite game. I avoided homework in sixth grade and, when I had a solid 0 percent in t

Have you noticed all the startups raising massive sums of money recently? Perhaps you’ve scratched your head wondering how a company like Buzzfeed, known for its website full of animated gifs, listicles and quizzes, just raised $50 million dollars, valuing the company at a reported $850 million. Snapchat, the messaging app known for helping teenagers sext one another, reportedly received a $10 billion valuation from its investors. Has the world gone mad?

Some industry watchers see the recent boom in seemingly trivial apps and websites as foretelling tech bubble 2.0. However, there’s much more to the story. 

You can read the Nir and Far blog post on: The Real Reason "Stupid" Startups Raise So Much Money https://www.nirandfar.com/2014/12/stupid-startups.html

Compared to other media types on the web, video is unique in the immediacy with which it can convey a vast amount of emotional and informational content to its viewers. By virtue of the fact that video is an instantaneous form of communication, it has the advantage of being able to create a shared experience, in which people can watch the same thing at the same time, wherever in the world they might be. As with all social content, enabling people to participate in such a way can create a profound sense of connection and community, which can help generate word of mouth and amplify the reach of your message.

Unlike images or copy, video (and audio) set the pace at which a story or message is delivered. Although it is true that people can stop watching whenever they choose, the analytics tools built into video hosting platforms are making it easier than ever before to assess when people are bouncing away. This

Allow me to take liberties with a philosophical question reworked for our digital age. If an app fails in the App Store and no one is around to use it, does it make a difference? Unlike the age-old thought experiment involving trees in forests, the answer to this riddle is easy. No!

Without engagement, your product might as well not exist. No matter how tastefully designed or ingeniously viral, without users coming back, your app is toast.

How, then, to design for engagement? And as if that were not challenging enough, how should products that touch users across multiple devices, like smartphones, tablets, and laptops, keep people coming back?

You can read the article on: How To Build Habits In A Multi-Device World 

You can read the Nir&Far blog post on: Framing Reward is as Important as Reward Itself https://www.nirandfar.com/2014/11/framing.html

Nir & Far, a podcast about business, behaviour and the brain by Nir Eyal. If you enjoy this podcast, please subscribe on iTunes and leave an iTunes review. It will greatly help new listeners discover the show. Please visit my website Nir and Far for other info about my writing, books and teaching: http://www.nirandfar.com/

On May 1, 1981, American Airlines launched its frequent flyer program AAdvantage. Since then, a flood of loyalty programs have attempted to bring customers back through rewards.

 Today, you ca

You can read the Nir and Far blog post on Stop Building Apps, Start Building User Behaviors https://www.nirandfar.com/2012/07/stop-building-apps-and-start-building-behaviors.html

Nir & Far, a podcast about business, behaviour and the brain by Nir Eyal. If you enjoy this podcast, please subscribe on iTunes and leave an iTunes review. It will greatly help new listeners discover the show. Please visit my website Nir and Far for other info about my writing, books and teaching: http://www.nirandfar.com/

Do you get the feeling apps are getting dumber? They are, and that’s a good thing. Behind the surprising simplicity of

Note: I co-authored this post with Andrew Martin and David Ngo. It originally appeared in TechCrunch.

This week, fans packed stadiums in London wearing their nation’s colors like rebels ready for battle in Mel Gibson’s army. They screamed with excitement and anguished in defeat. Many paid thousands of dollars to travel around the globe to be there.

Among those who did not attend, 

A few years ago, everyone was clicking. Today, we’re all scrolling. Twitter, Pinterest, Facebook, Instagram, and Medium – it seems everyone is getting on the infinite scroll bus. What is it about this magical design pattern that has so many consumer web companies using it?

Not too long ago, users were forced to reload pages to progress from one piece of content to the next. Web designers were advised against creating websites with information appearing “below the fold”, the portion of the page underneath what is displayed on the screen. As mobile phones and tablets gained wider adoption, it looked like the swipe might become standard fare. But that’s all changed now. Today, designers are 

Type the name of almost any successful consumer web company into your search bar and add the word “addict” after it. Go ahead, I’ll wait. Try “Facebook addict” or “Twitter addict” or even “Pinterest addict” and you’ll soon get a slew of results from hooked users and observers deriding the narcotic-like properties of these web sites. How is it that these companies, producing little more than bits of code displayed on a screen, can seemingly control users’ minds? Why are these sites so addictive and what does their power mean for the future of the web?

We’re on the precipice of a new era of the web. As infinite distractions compete for our attention, companies are learning to master new tactics to stay relevant i