Jack Dorsey

Jack Dorsey: A Far‑Reaching Visionary in Modern Tech

Co‑founder of Twitter, Block (formerly Square), and Bluesky.

Welcome to the Avocadata Marketplace blog, where we dive into industry‑shaping entrepreneurs, groundbreaking technologies, and the people behind global innovation. Today, let's explore the journey of Jack Patrick Dorsey, an American business magnate whose ventures continue to disrupt tech and finance.

Forbes estimates his net worth at over $5.6 billion (DecemberΒ 2024), underscoring his influence in the modern tech landscape.

Roots in the Midwest

Birth and Upbringing
Jack Patrick Dorsey was born on in St. Louis, Missouri. Raised in a Catholic household, he credits his Midwestern upbringing for grounding his later ambitions.

1976

Born in St. Louis, Missouri.

EarlyΒ 1990s

Attended Bishop DuBourg High School; discovered a fascination with dispatch routing.

AgeΒ 14

Built early software for taxi‑dispatch logisticsβ€”foreshadowing Twitter's realtime ethos.

Leaps into a Tech Career

In the early 2000s Dorsey founded a company in Oakland that provided real‑time dispatching for couriers and taxis. By mid‑2000, his ideas matured into a prototype for short status updatesβ€”an early seed of Twitter.

2000

Built real‑time dispatch software for local services.

Prototype

Sketched a web‑based β€œstatus” platform after studying LiveJournal & AIM.

Twitter: A Micro‑Blogging Game‑Changer

Conception & Early Days

At podcast startup Odeo, Dorsey, BizΒ Stone, and EvanΒ Williams transformed the β€œstatus” prototype into Twitter. Within weeks they attracted venture capital and a passionate user base.

Corporate Shifts & Growth

After stepping aside as CEO in 2008, Dorsey focused on product reliability while Twitter ballooned from a side‑project into a cultural staple.

Return to the Helm

Dorsey returned as Twitter CEO inΒ 2015, rolling out major changes like removing photos and links from the 140‑character count and introducing algorithmic timelines.

2015

Re‑appointed CEO.

2016

Expanded tweet features; improved recommendations.

2021

Resigned; succeeded by ParagΒ Agrawal.

BlockΒ (Formerly Square): FinTech Re‑imagined

Founded inΒ 2009 with JimΒ McKelvey, Square democratized card payments with a tiny mobile reader. The company IPO’d inΒ 2015 and rebranded to BlockΒ Inc. inΒ 2021 to emphasize blockchain initiatives.

2009

Square launches.

2015 IPO

Goes publicβ€”valuationΒ $2.9B.

2021

Rebrands as BlockΒ Inc.

Bluesky: A Decentralized Social Vision

Bluesky began inside Twitter but spun out as an independent project exploring open social protocols. Dorsey served on its board untilΒ 2024.

Champion of Digital Currency

A vocal Bitcoin advocate, Dorsey invests heavily in decentralized protocols and routinely speaks at crypto conferences.

Bitcoin Vision

Calls Bitcoin β€œthe internet’s native currency.”

Nostr

Funds open‑source protocol for censorship‑resistant social networking.

Personal Life

Dorsey practices intermittent fasting and is known for ice baths and meditation retreats. He donates to COVID‑19 relief, universal basic income pilots, and environmental causes.

Philanthropy

InΒ 2020 he moved $1Β billion (roughly 28% of his wealth) into the StartΒ Small LLC to fund global health, girls’ education, and racial‑equity programs.