What should I have accomplished by 40?

See what remarkable builders and entrepreneurs achieved at age 40

Your Position

95th
percentile
Behind
Ahead

Notable Achievements at Age 40

John Adams

Declaration of Independence approved

Congress approved the Declaration; Adams had been a leading advocate and served on the Committee of Five.

1776
100% confidence
Source
Branden Jacobs-Jenkins

Purpose won Pulitzer Prize for Drama (2025)

Purpose was awarded the 2025 Pulitzer Prize for Drama (Branden Jacobs-Jenkins named Pulitzer winner).

2025
99% confidence
Source
Justin Amash

Left Congress

Term ended on January 3, 2021; left House as the only sitting Libertarian member in either chamber.

2021
99% confidence
Source
Jacinda Ardern

Landslide re-election; Labour wins majority

Led Labour to a landslide victory with an overall majority of 65 seats (first single-party majority since 1996); party won ~50% of the vote.

2020
99% confidence
Source
Casey Newton

Set Platformer paid subscription price at $10/month

Platformer on Substack offered a paid tier costing USD $10 per month.

2020
99% confidence
Source
Kumail Nanjiani

Academy Award nomination — Best Original Screenplay

Nominated (with Emily V. Gordon) for the Academy Award for Best Original Screenplay for The Big Sick (Oscars held in 2018 for 2017 films).

2018
99% confidence
Source
Changpeng Zhao

Founded Binance

Zhao left BijieTech to found Binance, a new cryptocurrency exchange (launch month July 2017).

2017
99% confidence
Source
Jimmy Fallon

Suffered ring avulsion finger injury

Tripped and injured his finger on June 26, 2015; underwent microsurgery, spent 10 days in ICU, expected months of recovery.

2015
99% confidence
Source
Stewart Butterfield

Public release of Slack

Slack's go-to-market/public release occurred in February 2014.

2014
99% confidence
Source
Daniel Butterfield

Public release of Slack

Slack publicly launched in February 2014 and immediately recorded rapid weekly growth (reported 5–10% weekly).

2014
99% confidence
Source
Stewart Butterfield

Announced release of Slack (preview)

Announced Slack—an instant-message-based team communication tool developed inside Tiny Speck—previewed publicly in August 2013.

2013
99% confidence
Source
Alexander McQueen

Found dead in Mayfair home — suicide

On the morning of 11 February 2010 his housekeeper found him hanged at his home in Green Street, Mayfair, London. Paramedics pronounced him dead at the scene.

2010
99% confidence
Source
Tyler Perry

Death of mother Willie Maxine Perry

His mother died at age 64 after an illness; she had been a major influence on his life and work.

2009
99% confidence
Source
Patton Oswalt

Daughter Alice born

Daughter Alice Rigney Oswalt born to Patton Oswalt and Michelle McNamara (April 15, 2009).

2009
99% confidence
Source
Wendy Kopp

Founded Teach For All (co-founder & CEO)

Co-founded Teach For All, a global network supporting independent social enterprises adapting the Teach For America model worldwide; serves as CEO.

2007
99% confidence
Source
Brené Brown

Birth of son Charlie Alley

Second child, Charlie, was born.

2005
99% confidence
Source
Larry Lessig

Co-founded Creative Commons

Founded Creative Commons, a nonprofit to expand legal sharing and reuse of creative works; became a founding board member.

2001
99% confidence
Source
Kent Beck

Signed the Agile Manifesto

Was one of the 17 original signatories of the Agile Manifesto, foundational to Agile software development.

2001
99% confidence
Source
Christiane Amanpour

Married Phillip James 'Jamie' Rubin

Married James (Jamie) Rubin in Bracciano, Italy; Rubin is a former U.S. Assistant Secretary of State.

1998
99% confidence
Source
Clayton Christensen

Awarded DBA from Harvard Business School

Completed doctoral study in business administration (DBA).

1992
99% confidence
Source

💡 What this means for you

At age 40, you're at a pivotal point where many successful entrepreneurs made their breakthrough. Whether you're building your first company or scaling an existing one, these examples show what's possible with focus and execution.

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