Jack Dorsey is a visionary serial entrepreneur who is the co-founder and former CEO of Twitter. He is also the founder and CEO of Block (formerly Square), a financial services and digital payments company that has been at the forefront of innovation and adoption of Bitcoin and blockchain technology.

Dorsey is a vocal advocate and supporter of Bitcoin, which he believes is the native currency of the internet and has the potential to change everything. He announced a new platform called Web5, a combination of Web3 and Web 2.0, built on the Bitcoin blockchain, which promises to fix the issue of securing personal data.

Dorsey is also an active investor in various crypto projects, such as Lightning Labs. He has donated $1 million to Coin Center, a non-profit research and advocacy center focused on public policy issues for cryptocurrencies. He has also launched ₿trust, a blind irrevocable trust focused on funding Bitcoin development, initially in Africa and India.