Until the mid-1990s, the internet was little more than an arcane set of technical standards used by academics. Few predicted the profound effect it would have on society. Today, blockchain—the technology behind the digital currency bitcoin—might seem like a trinket for computer geeks. But once widely adopted, it will transform the world. Blockchain offers a way to track items or transactions using a shared digital “ledger.” Blocks of new transactions are added at the end of the chain, and encryption ensures that it… To Read the Full Story, Subscribe or Sign In
How blockchain will change your life
More of Today's Solutions
The Great Bubble Barrier: bubble curtains are intercepting 86 percent of rive...
BY THE OPTIMIST DAILY EDITORIAL TEAM Rivers are how plastic gets to the ocean. Stop it there, and you stop it for good. The ...
Read MoreIndia connects 124 million rural homes to tap water
BY THE OPTIMIST DAILY EDITORIAL TEAM Six years ago, fewer than one in six rural homes in India had a tap water connection. As ...
Read MoreThe biodegradable, self-cleaning fabric made from living caterpillar fungus
BY THE OPTIMIST DAILY EDITORIAL TEAM The sustainable fashion industry has spent years trying to reduce harm: less water, fewer synthetic chemicals, more recycled ...
Read More7 plants with super air-purifying powers
Houseplants are all great natural indoor air purifiers, but some are especially effective for improving indoor air quality. Here are seven houseplant varieties that ...
Read More
