Paul Graham is the closest thing the startup world has to a house essayist — an "essayist-investor" whose two-decade corpus at paulgraham.com functions as a written canon for how startups are built, and whose biography explains the odd combination of painter, Lisp hacker, founder, and funder that produced it.
Formation
Born November 13, 1964 in Weymouth, Dorset, he moved with his family to Pittsburgh in 1968 and started programming in high school. He took a philosophy BA at Cornell (1986), then a Harvard MS (1988) and PhD in computer science (1990) — and then, unusually, went to art school: painting at RISD and at the Accademia di Belle Arti in Florence until his money ran out. In his memoir "What I Worked On" (February 2021) he describes the early-1990s Interleaf job he took to pay for art school, during which he says he covertly wrote much of On Lisp (Prentice Hall, 1993). ANSI Common Lisp followed in 1995.
Viaweb: the first web app, in Lisp
In the summer of 1995 he and Robert Morris started Viaweb in Cambridge, Massachusetts, with Trevor Blackwell joining shortly after. The product let users build online stores through a browser — in his claim, the first web-based application and the first application service provider — and it was written mostly in Lisp, which he credits for the speed that let a tiny team outrun larger competitors ("Beating the Averages," 2001/2003). Viaweb started on $10,000 of seed funding in exchange for 10% — a structure he says later became YC's model. Yahoo announced the acquisition on June 8, 1998 for roughly 455,000 shares valued at approximately $49 million (per Yahoo's 8-K and contemporaneous CNNfn and Wired coverage); the product became Yahoo Store.
The essays era
After Yahoo he turned to writing and painting. From 2001 he published essays on his own site — "Why Nerds are Unpopular," "Hackers and Painters," "How to Make Wealth," "The Age of the Essay" — and O'Reilly collected the best into Hackers & Painters (2004). The essays treat startups as a maker's craft, argue the essay form is a tool for figuring things out, and distinguish wealth (what people want) from money. The index now lists well over a hundred essays; his bio claims roughly 25 million page views a year, a self-reported figure.
Y Combinator
A March 2005 talk to the Harvard Computer Society became the essay "How to Start a Startup" — and, in his telling, the prompt for YC. On March 11, 2005, walking home through Harvard Square with Jessica Livingston, they decided to start an investment firm; Robert Morris and Trevor Blackwell joined, and the four started with $200,000 of their own money. The first project was the Summer Founders Program — announced in late March 2005 as "an experimental replacement for the conventional summer job" — which drew ~227 applications and funded eight startups that summer, including the UVA graduates who built Reddit (Wired covered the cohort that September). The batch model, he says, was an accident that became the signature: fund a synchronous cohort twice a year, help intensively for three months, end with Demo Day. YC now runs four batches a year and, per his bio, has funded more than 3,000 startups — Airbnb, Dropbox, Stripe, Reddit. He insists much of what made YC distinctive was Livingston: "the culture was the product."
Hacker News and Arc
In February 2007 he launched Y Combinator Startup News — a user-ranked forum for the growing YC community — which took the name Hacker News on August 14, 2007. It was also the flagship application for Arc, the Lisp dialect he and Morris had been designing; the first public Arc release followed on January 29, 2008. Arc's pitch was "exploratory programming" — a medium for sketching software — shipped with a warning that future releases would break all existing code. Its last stable release is 3.2 (2018); Wikipedia's record notes YC's own infrastructure has largely moved to a Common Lisp variant. In October 2019 he published Bel, a second dialect, delivered as a spec written in itself rather than an implementation.
Handoff and the return to writing
In "What I Worked On" he recounts deciding in 2012 to hand YC over, recruiting Sam Altman through 2013, and — on February 21, 2014 — announcing Altman as president while he kept office hours only. The family moved to England in 2016, intending a year; they stayed in the countryside. What followed was a second writing era: "Economic Inequality" (January 2016) drew national coverage for the "manufacturer of economic inequality" framing; "What I Worked On" (2021) supplied the memoir; "How to Do Great Work" (July 2023) distilled his philosophy into four factors — ability, interest, effort, luck — with curiosity as the engine; and "Founder Mode" (September 2024), prompted by a Brian Chesky talk, coined a term that the New York Times, Fortune, and CNN were debating within days.
What he argues
The recurring doctrine: startups are companies designed to grow fast, so measure growth weekly ("Startup = Growth," 2012); get ideas by noticing problems you have, including ones hidden by "schlep blindness" (2012); do things that don't scale (2013); ask whether you're default alive (2015). Around the startup advice sits a wider frame: makers work on a different schedule than managers (2009); cities shape ambition by the messages they send (2008); hackers and painters are the same kind of creature; taste is real; prestige is a danger sign because the low end eats the high end; and unglamorous work — still life, Lisp, essays on a personal site, a "lame" incubator — has been the winning pattern of his life.
What the record does not settle
The soft spots are where the record is his own voice. Viaweb's founding date is conflated across sources (summer/July 1995 versus a 1996 launch). The sale figure reads $49 million in filings and $49.6 million in reference records. Most of the Viaweb and early-YC history is self-narrated. Arc's future development is unclear, and the "retired" label fits loosely — he still invests at Demo Day "pretty haphazardly," by his own account, while writing full-time.
This index was compiled from public sources and does not imply the subject's endorsement. Citations live in the packet's source catalog.