Tesla has carved out a small niche by selling a $50,000 car for $100,000 to customers who are willing to pay a premium to be able to say that they’re on the cutting edge or that they’re saving the planet. It’s now trying to go to a larger market by selling a $20,000 car for $35,000. It’s not clear that this business model works without government subsidies. What the regulatory support for Tesla has actually managed to achieve is to inflate a massive bubble that sucked billions of dollars of private capital into a company that probably doesn’t have a sustainable long-term business model. At the very least, money and capital are being diverted from places they would otherwise have gone and instead are being used to support a politically favored innovation at a very high risk of failure. —The Federalist
Reading junk spam messages isn’t exactly my idea of a good time, but sometimes fun can be had when you take a moment to check who really sent the email. Here’s the simple story of how a recent spam email advertising celebrity “diet pills” was traced back to a Washington, D.C.-area defense contractor that builds tactical communications systems for the U.S. military and intelligence communities. Your average spam email can contain a great deal of information about the systems used to blast junk email. If you’re lucky, it may even offer insight into the organization that owns the networked resources (computers, mobile devices) which have been hacked for use in sending or relaying junk messages. —Krebs on Security
A blockchain is a digital ledger of records that’s arranged in chunks of data called blocks. These blocks then link with one another through a cryptographic validation known as a hashing function. Linked together, these blocks form an unbroken chain — a blockchain.
The reason that this type of data structure is useful for things like cryptocurrencies is decentralization, meaning the records inside this chain aren’t stored in any single location, are accessible by everyone, and are immutable by any one party. —Free Code Camp