TECH TALK

Bitcoin, crypto and Web3 teeter on the brink of a $2 trillion bubble

Cryptocurrencies might reinvent the way we live and work, but the fortunes currently being made could come crashing down

Brian Armstrong is a former Airbnb software engineer
Brian Armstrong is a former Airbnb software engineer
STEVEN FERDMAN/GETTY IMAGES
The Sunday Times

Brian Armstrong, the 38-year-old, bald-headed brainbox behind cryptocurrency exchange Coinbase, gave himself a Christmas present this year: an immense property in LA’s Bel Air. The price was a cool $133 million (£97 million). He’s unlikely to miss it. Armstrong’s net worth shot to an estimated $9.4 billion after Coinbase’s 2021 stock market float.

The one-time Airbnb software engineer is not the only person to have come into sudden, vast wealth lately. In the crypto world, such stories are de rigueur.

Consider Alex Atallah and Devin Finzer. Two years ago, the New York thirtysomethings were running a marketplace for non-fungible tokens, the unique digital assets known as NFTs. It was generating less than $30,000 a month in sales. Then the world fell in love with high-priced