In This Issue: Features
Free Speech in the Era of Its Technological Amplification
A letter to John Stuart Mill about the limits of what may be shown or said on the Web.
A Cheap and Easy Plan to Stop Global Warming
Intentionally engineering Earth’s atmosphere to offset rising temperatures could be far more doable than you imagine, says David Keith. But is it a good idea?
In This Issue: Most Innovative Companies
50 Disruptive Companies
Our fourth annual list of companies around the world whose innovations will reshape markets.
Steve Ballmer on the Strategy Behind His Strangest Product
Microsoft’s CEO explains what Windows 8 means to his company.
Inside China’s Genome Factory
Sequencing a complete human genome may soon cost less than an iPhone. Will BGI-Shenzhen decode yours?
Xerox’s CEO Wants to Shake Up the Services Market
Ursula Burns says Xerox can outfox low-cost outsourcing companies with better technology.
Apple’s Next Innovation: TV
Television viewers fumble with awkward remote controls and crave a richer array of on-demand programming. It’s time for Apple to step in and disrupt the TV business.
Ambri’s Better Grid Battery
A tiny startup called Ambri wants to transform our energy system with massive liquid-metal batteries.
How Nest’s Control Freaks Reinvented the Thermostat
Two men who created the iPod and iPhone founded Nest and injected new technology into the humble thermostat. Now they have their sights on the rest of your house.
Pinterest’s Founder: Algorithms Don’t Know What You Want
CEO Ben Silbermann says Pinterest is built on the idea that crowds of people are best at finding content that consumers care about.