Colloquially known as “crypto,” cryptocurrencies are forms of digital currency that evolved a wide variety of uses in recent years. Advocates of cryptocurrency point to several advantages: instant transfer of funds, protection against inflation, and much more.
Among their key features is decentralization, meaning that unlike traditional money, they generally aren’t controlled by a single authority like a bank or government.
As of early 2025, cryptocurrencies had a cumulative market cap of almost $3.4T, making them worth more than some of the world’s most valuable companies, like Google and Amazon (both valued at roughly $2.3T). A recent survey found roughly 17% of US adults had invested in, traded, or used cryptocurrency.
Critics argue cryptocurrencies are susceptible to boom-and-bust cycles, making investments risky for those without a clear understanding of the ecosystem.
Hours of research by our editors, distilled into minutes of clarity.
Bitcoin is a digital cash alternative introduced in 2009 that rapidly grew in popularity and now boasts a global user base. Enthusiasts point to bitcoin’s decentralized nature—meaning it is not created or controlled by any central government—lending it several potential advantages.
Andreessen Horowitz (a16z) is a leading venture capital firm with deep expertise in cryptocurrency and blockchain technology. For 10 years, the firm has built its internal knowledge in the area, and archived a wide range of explainers exploring everything from fundamentals to emerging crypto trends, and much more.
Satoshi Nakamoto's original introductory paper "Bitcoin: A Peer-to-Peer Electronic Cash System," is required reading for anyone who wishes to understand the cryptocurrency. Bitcoin.org provides assorted translations. While Nakamoto's identity remains a mystery, his ideas are neatly laid out here, along with supporting documentation.
As of this writing, the top three cryptocurrencies ranked by market cap are Bitcoin, Ethereum, and XRP, in that order. Dogecoin, the first-ever “memecoin,” was created as a joke in 2013, and it’s now the ninth-most valuable form of cryptocurrency in the world.
Blockchain, the key technology behind bitcoin, is a new network that helps decentralize trade and allows for more peer-to-peer transactions. Wired challenged political scientist and blockchain researcher Bettina Warburg to explain blockchain technology to five different people: a child, a teen, a college student, a grad student, and an expert.
While crypto feels new, it actually dates to 1983, with eCash's creation. However, a lot has happened in the crypto world over the past few years in particular—crypto’s market cap surpassed $2T for the first time in 2021, for instance. A timeline of crypto's history details the events in between.
Some of the brightest minds at Andreesen-Horowitz, one of the country’s leading venture capital firms, believe the cryptocurrency ecosystem will revolutionize global finance in the coming decades. This podcast recounts, through their view, the history of crypto, how it works, and trends they see emerging in the future.
A survey from the Pew Research Center found that 63% of US adults have “little to no confidence that current ways to invest in, trade, or use cryptocurrencies are reliable and safe.”
Bitcoin, launched in 2009, is primarily a digital currency and store of value with a fixed supply. Ethereum, introduced in 2015, enables smart contracts and decentralized apps, offering more flexibility.
Do you ever wonder how much money you'd have now if you bought bitcoin in 2019? 2018? 2017? This calculator provides the answer. Plug in the amount of bitcoin you would have purchased, plus the year and the currency.
The United States is home to more than 33 million businesses, the vast majority of which are small businesses, with millions being created (and others closing shop) every year. These businesses often rely on loans, provide the goods and services that keep the economy flowing, and sometimes even grow large enough to enter public markets or provide private investment opportunities. Explore key topics central to business and finance, from the role of the Federal Reserve to how initial public offerings work, how millions of American students finance higher education, and more.