Way before Ray Kurzweil, Keynes showed us what happens as exponential growth accumulates over time. His projections about how big the economy would become after decades of compounded growth sounded like lunacy to readers during the Great Depression but were amazingly accurate, as was his prediction that humanity would move past its “struggle for subsistence” within a century. At the same time, he overestimated how quickly the work week would get shorter – most of us are working a lot more hours than he envisioned.

This description of what Usenet is and how it works, written shortly before the Web exploded into the mainstream, got important things right: the net’s great variety and utility, its unruliness, and the overall spirit of helpfulness and sharing that persists more than two decades later.

Economist Julian Simon is an intellectual hero of ours. Throughout his underappreciated career he made the case that things were getting better instead of worse, backed up his arguments with masses of data, and won wagers against prominent Malthusians. This piece is a great introduction to his thinking, and gives him some of the recognition he’s due.

Before the Watson supercomputer trounced the two best human Jeopardy! players early in 2011, this article revealed its uncanny ability to mine vast amounts of text in search of answers to tough questions, and to navigate the punning and other wordplay that the quiz show throws at its contestants. This is one of the articles that made us say to each other “Something’s different now…”

Kasparov, a powerful writer, explains how computers came to dominate humans at chess and why this is not cause for alarm that they’ll soon be able to do everything better than we do. Chess has long been an exemplar of human intelligence, and increasingly a metaphor for how humans and machines may co-exist.

The digital economy is not just different, too often it’s invisible. Brian Arthur brings it to life with a description of all the ways it increasingly surrounds us. As “software eats the world”, to use Marc Andreessen’s evocative phrase, we’ll all need to get more and more familiar with this other economy.

Captures the palpable energy coming from San Francisco’s young technology entrepreneurs, who by perceiving no barriers are knocking a lot of them down. We share Heller’s sense that things are happening more quickly there than just about anyplace else.

For the data lovers among us, here’s a slew of encouraging trends from falling poverty and crime, to rising life expectancy, literacy and computer power. There’s still a lot of work to be done, but the positive numbers feed our optimism.

“Hillary Clinton was never a shy person.”

Two biographies of Hillary Clinton do not get us any closer to understanding her.

On Clinton’s Arab Spring.

GROSS: I am just trying to clarify so I can understand.

CLINTON: No, I don't think you are trying to clarify. I think you're trying to say that, you know, I used to be opposed and now I'm in favor and I did it for political reasons. And that's just flat wrong. So let me just state what I feel like you are implying and repudiate it. I have a strong record. I have a great commitment to this issue and I am proud of what I've done and the progress we're making.

The drawbacks of being the front-runner.

There’s nothing simple about this candidacy—or candidate.

On Timothy Treadwell, later immortalized in Grizzly Man, who lived and died by the bears of Alaska.

The life story of Travis the chimp and the family of tow truck operators who raised him like a human child before it all ended in tragedy.

The life story of Tilikum, a killer whale who dragged his SeaWorld trainer into the pool and drowned her in 2010. It was the third time the orca had been involved in a death during his 27 years in captivity.

Encountering a pack of wild dogs in Manhattan.

“Joe’s hand began to tingle, and he called the group together. The toxins would leave his system in 48 hours, he said. He’d be conscious the whole time.”

After two people are found dead in Yellowstone National Park, a team of investigators tracks down the unlikely culprit: a grizzly bear.

How smallpox went from eradicated disease to the ideal weapon of bioterrorists.

The author of The Hot Zone on how geneticists can help contain the current outbreak.

The story of H1N1 and John Behnken, whose life it claimed.

New York during the early days of the AIDS epidemic.

Living on borrowed time, with liver cancer.

Exploring the riddle of Morgellons disease: sufferers feel things crawling under their skin and hardly anyone believes them.