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Apple's plan to dominate apps is wildly successful even though it still has a major flaw (AAPL)

The latest version of Apple's young programming language, Swift, will be one of the stars of the show at Apple's World Wide Developers conference (WWDC) which begins June 13.

The programming world has never seen anything like Swift. Apple launched the new programming language a mere two years ago. And its name was a premonition — it caught on like wildfire.

As of this week, some 59% of people building iOS apps are using Swift, compared to 39% who are still building apps with the former programming language, ObjectiveC, among the 100,000 developers using the young and up-and-coming mobile database called Realm, says Realm VP Tim Anglade.

But Swift still has a major problem

Even more interesting, many of Realms users are enterprise app developers, people building custom mobile apps for a company's customers, employees, or partners.

NEVER MIND THE DEATH THREATS: An Apple Store worker tells us what it's really like working for Apple

A veteran Apple retail worker has given Business Insider a lengthy interview about what it is really like working at Apple in the UK. This staffer told us:

Workers feel the company's mandatory internal criticism policy makes Apple "like a cult." Apple Store workers routinely face death threats from customers. It's easier to get into Harvard than it is to work at an Apple Store. Even if you sell an enterprise contract worth hundreds of thousands, all you will get is £8 an hour and a handshake. Apple store workers are paid so little many cannot afford the products they sell and some go into debt to buy them. Apple doesn't promote from within or give bonuses to its best workers. What happens if you come to work carrying a Samsung phone. Why Apple staff will ask you about your favourite flavour of ice cream.

GOLDMAN SACHS: 5 practical uses for blockchain — from Airbnb to stock markets

"Is the hype around blockchain justified?" asks Goldman Sachs in a blockbuster 88-page note sent to clients this week.

The financial world has been going crazy for blockchain technology for the last year or so, hypothesising how it could rip out huge amounts of costs for big banks and streamline operations. Goldman itself was one of the key hype men, declaring in December that the technology "can change... well everything."

For those not up to speed, blockchain is a database protocol developed to underpin bitcoin. Rather than having a central record keeping system, identical records are spread across everyone connected to a network. They are all updated simultaneously and transactions only go through when enough parties on the network sign off on them. (

'Not significant': Deloitte trashes a once-hot $180 billion area of fintech that's run into trouble

Deloitte just trashed the hype around the online lending industry.

The accountancy and consultancy practice has done a deep dive on the online lending industry, and its conclusions should make for devastating reading for anyone connected to the sector.

Deloitte concludes that marketplace lenders, more commonly called peer-to-peer lenders in the UK, "are unlikely to pose a threat to banks in the mass market," according to Neil Tomlinson, Deloitte's head of UK banking. The report concludes that the platforms "will not be significant players in terms of overall volume or share."

This is a pretty devastating brush-off. Marketplace lenders have big ambitions — Funding Circle CEO Samir Desai told us that his company wanted to be lending $100 billion a year over its platform one day.

How to see all the companies tracking you on Facebook — and block them (FB)

Facebook is great if you want to stay in touch with friends and family. It's free, of course, but it comes with a price. If you're using Facebook, you're giving up a ton of information about yourself, mainly to advertisers who track you.

Most people forget that when they download an app or sign into a website with Facebook, they are giving those companies a look into their Facebook profile. Your profile can often include your email address and phone number as well as your work history and current location. And most people don't realize that if you're sharing that data with friends, then apps used by those friends can see that data as well!

How a failed education startup turned into, the most popular app you've probably never heard of

Unless you live with a teenager, you've probably never heard of

If you do, then you've probably already appeared in one of your kid's music videos.

The DIY music video app first came on the scene in 2014, but exploded to the top of the App Store charts last summer. It hasn't fallen below the top 40 since. Often, it's swapping top places in the app store with Snapchat and Instagram.

The 15-second videos are typically people lip-syncing or dancing to some of the top hits. More recently, stars have started launching their own careers, and traditional music stars, like Jason DeRulo, are now pledging to debut their videos on the platform first, a coup over YouTube.

Today, more than 10 million people use the app daily and produce around the same number of videos every single day. All in, 70 million people have registered as users, says its cofounder and co-CEO Alex Zhu.

How Amazon CEO Jeff Bezos has inspired people to change the way they think about failure

Amazon CEO Jeff Bezos is one of the most successful business moguls in the world. 

But he wouldn't be there if he didn't embrace "failure" the way he has over the years.

Here's a look at all the different ways Bezos encouraged failure at Amazon — and it will change the way you think about failure too:

Disclosure: Jeff Bezos is an investor in Business Insider through his personal investment company Bezos Expeditions.

Bezos is a big fan of failure. It's because he believes failed experiments are a necessary evil to creating successful inventions. He says failure and inventions are "inseparable twins." "To invent you have to experiment, and if you know in advance that it’s going to work, it’s not an experiment. Most large organizations embrace the idea of invention, but are not willing to suffer the string of failed experiments necessary to get there," Bezos wrote in Amazon's most recent annual shareh...

Why chatbots should be more like R2D2 than C3PO, and other lessons for Silicon Valley's hottest trend

Bots are hot in Silicon Valley. 

Everyone's obsessed with "conversation as a platform," or the idea that you should be able to interact with a service with natural language, spoken or written, instead of in the traditional click-an-icon way you'd interact with a computer. 

The answer to millennials' biggest money worry might have something to do with Candy Crush

It's tough to be a millennial. 

The amount of student debt is skyrocketing and the number of young homeowners is cratering.

Young people today aren't earning as much money as their parents did when they were young. 

All those challenges have contributed to a startling statistic: millennial men are more likely to live with their parents than with a spouse or partner

That makes investing difficult;

YouTube star wakeboarded the canals of Amsterdam wearing a tuxedo

Remember the guy who snowboarded through the empty streets of New York City during Winter Storm Jonas?

YouTube star Casey Neistat's latest stunt involved wakeboarding through the canals of Amsterdam behind a jet-ski ... and he did it wearing a tuxedo.

With just one day of training — he'd never been on a wakeboard until the day before the video was shot — Neistat donned a tux over a life jacket and wetsuit, and hit the canals just after sunrise.

He didn't run into any problems while filming, but was stopped later in the day by officials who had seen the