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The first and most popular cryptocurrency, bitcoin, launched more than a decade ago. Yet for all the relentless buzz, relatively few are well versed in cryptocurrencies or the blockchain, the technology on which they’re built.
Despite the evangelizing by and rising profile of some investors, a 2021 poll by Pew Research Center found that just 16% of Americans said they have ever invested in cryptocurrencies. That broadened to 31% between the ages of 18 and 29 and to 43% of men in that age range.
If you’re not among those percentages, you might view these currencies with skepticism and may have avoided trying to understand the lingo or the technology.
But as cryptocurrencies and related technologies reach into politics, intertwine with the larger economy, and impact the environment, everyone could use a sense of what they are, how they work, and their pitfalls and potential.
I want to sound smart. Is it “blockchain” or “the blockchain?”
It depends on usage. “Blockchain technology” is acceptable to refer to the computer code that records cryptocurrency transactions (and can be used for other things; stay with us). Standing alone, just call it the blockchain – even though there are actually multiple (don’t worry, we’ll explain below).
What is the relationship between cryptocurrencies and the blockchain?
Blockchains record cryptocurrency transactions in encrypted, digital records that live on servers all around the world. Some blockchains allow developers to build in applications and program contracts.
Also of note: Different cryptocurrencies are built on different blockchains. Bitcoin is built on the, well, bitcoin blockchain; ether is built on the ethereum blockchain. There now are some cryptocurrencies or tokens that are essentially built on top of other cryptocurrencies – but at the most basic level, all cryptocurrencies refer back to a blockchain.
Blockchains also can be used to record other…
