The American economy's big problem: we don't have enough companies like Tesla

Tesla is going to need billions of dollars to meet its ambitious production goals. Most technology companies don't need that kind of money.

It's possible to charge electrical devices without wires. Soon it may even be practical.

Wireless charging is on the verge of busting out.

Why robots and smart technology aren’t revolutionizing your house

After 14 years, robot vacuum cleaners like the Roomba are still a niche product.

140 characters means 140 characters: Twitter is set to make an overdue change

Above all, the 140-character limit must remain in place!

Facebook is going to get more politically biased, not less

The reason Facebook created an echo chamber in the first place is because an echo chamber is what people actually want.

How Google passed Apple to become the world's most valuable company

Apple's profits are worth three times more than Google's, yet Wall Street values them about the same.

Europe does debit cards better than America

Walmart is suing Visa to change that.

Facebook has more influence over Americans than any media company in history

Facebook faces a backlash over allegations that it suppressed conservative stories from its trending news module.

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Uber is becoming a monopoly. It should start acting like one.

Uber is going to be hobbled by its image as a bull in the china shop.

Black women are the fastest-growing group of entrepreneurs. So where are the investors?

How one black woman investor is helping other women of color get the money to turn their ideas into actual businesses.

How the White House wants to make the rest of the country more like Silicon Valley

A new White House report argues that noncompete agreements are bad for worker rights and economic growth.

Craig Wright really wants you to think he invented Bitcoin. Don't believe him.

There's an easy way for Bitcoin's real creator to prove his identity. Wright hasn't done it.

An Australian businessman claims he invented Bitcoin and says he can prove it

Wright publicly identified himself as the creator of Bitcoin — fodder for years of conspiracy theories since the global payment network's launch in 2009.

Why China prompted a major Apple investor to sell billions in company stocks

He says he is worried about the company's position in China.

Mark Zuckerberg’s audacious plan to control Facebook as he sells his stock, explained

Zuckerberg could control 100 percent of Facebook while owning just 6 percent of its stock.

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