The main message of 'Smarter Than You Think' is an attempt to look at the productively new and interesting ways that we have begun to learn about the world, to think about what we found, and to mull it over and argue about it with other people as we use technology.

The things kids can do on screens can be really delightful - if they are age appropriate. But no, they shouldn't spend all their time on a screen; they should split up their time doing multiple, different things.

Tip-of-the-tongue syndrome is when people almost remember something but need a computer, or someone else, to help them find it. The problem is, our brains have always been terrible at remembering details. They were like that way before the Internet came along.

Truly huge artistic collaboration on the Internet seems to work only if the gang has a well-defined objective.

Ambient awareness is the experience of knowing what's going on in the lives of other people - what they're thinking about, what they're doing, what they're looking at - by paying attention to the small stray status messages that people are putting online.

The people who tend to get the most out of being social thinkers are the people who themselves are helpful. They're always talking or answering people's questions or engaging in productive conversations. They're not being trolls. They're tamping down other people that are being trolls.

Novelists in particular love to rhapsodize about the glory of the solitary mind; this is natural, because their job requires them to sit in a room by themselves for years on end. But for most of the rest of us, we think and remember socially.

I don't think the Internet has replaced cities in any significant way, nor really could it. Cities are dynamic - and deeply seductive for the people who flock there - because they broker all sorts of fantastic and useful connections, cultural and economic and social.

Railing at scientists for massaging tree-ring statistics won't stop the globe from warming if the globe is actually, you know, warming.

The one complaint about the Internet that I wholeheartedly endorse is that most of these tools have been designed to peck at us like ducks: 'Hey, there's a new reply to your comment! Come look at it!'

A huge amount of our everyday thinking - powerful, creative, and resonant stuff - is done socially: talking to other people, arguing with them, relying on them to recall information for us.

We use paper documents to store knowledge so we can consult and reconsult it, giving us a type of recall impossible with our unaided minds; we use pencils to scratch down material so we can manipulate it in a fashion impossible in our unaided minds.

The only reason we don't notice how absolutely interwoven our thinking processes have become with older technologies - pencils, paper, electric light, penicillin, fire - is that they're old, so we've ceased to notice their effects.

The amount of writing that people do online is astonishing, and historically unprecedented.

Personally, I'd love to see more social media firms develop business models that aren't reliant on advertising. If you're a social media firm selling ads, your goal is to get people to interrupt what they're doing all day long so they come and stare at your service as much as possible.

There is something about the ability to externalize our thoughts and compare them with other people in a public way that is really transformative for the average person.

There's nothing wrong with talking out loud in public, but there is something wrong with the government sucking up all those utter instances in a database just in case they maybe want to bust you in five years.

When you're an expert in a subject, you can retain new factoids on your favorite topic easily. This only works for the subjects you're truly passionate about, though. Baseball fans can reel off stats for their favorite players, then space out on their own birthday.

Transactive memory works best when you have a sense of how your partners' minds work - where they're strong, where they're weak, where their biases lie. I can judge that for people close to me. But it's harder with digital tools, particularly search engines.