JackSoslow's profile picture. Be so good they can't ignore you.

ex a16z, Oculus, Wharton.

Jack Soslow

@JackSoslow

Be so good they can't ignore you. ex a16z, Oculus, Wharton.

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Big update: I've left a16z and started a company! At a16z, I evaluated thousands of AI companies from seed to scale. This taught me something crucial: innovation is exciting, but true transformation - embedding AI into the core of our economy - is an entirely different…


If you hacked Penn, we're hiring:

JackSoslow's tweet image. If you hacked Penn, we're hiring:

The easiest way to work hard is to never stop.


The Presidio as God’s gift to man. The Golden Gate as man’s gift to God.

JackSoslow's tweet image. The Presidio as God’s gift to man.
The Golden Gate as man’s gift to God.

San Francisco and its Mandate of God


People are unexpectedly rediscovering this thread! Consumer founders, with just D1, D7, and D30, you can predict and simulate your entire retention curve—and even forecast your eventual DAUs—with remarkable accuracy at retentionmodels.com.

Common retention wisdom is "bigger is better" but what matters most is the curve's "flatness". So, I built a tool that ingests retention values (D1, D30, D90, etc) and predicts: - The full retention curve - DAUs - LTV - and more Read below to master retention and try the tool:

JackSoslow's tweet image. Common retention wisdom is "bigger is better" but what matters most is the curve's "flatness".

So, I built a tool that ingests retention values (D1, D30, D90, etc) and predicts:
- The full retention curve
- DAUs
- LTV
- and more

Read below to master retention and try the tool:


One cold email at a time, I built my life.


“Ilya Sutskever, I am your wallbreaker” - Sam Altman, 2024


The only things standing between me and success are how fast I act, how fast I learn, and a body that can match my will.


Ilya at NeurIPS: “I foresaw everything in AI the past decade, assembled colossal models, and now, standing on that Mount Olympus of predictions, I have precisely zero idea what comes next.”


Markets as food webs

JackSoslow's tweet image. Markets as food webs

Jack Soslow reposted

It’s rare for intelligence and drive to intersect in one person. When they do, look out.


Founders, less than 12 hours until applications close for SPEEDRUN—this is your last chance. After operating SPEEDRUN for ~2 years, I've heard some consistent misconceptions. Let's clear them up. 1. SPEEDRUN is 'just for games'— Wrong! Over 50% of our batch spans beyond games.…


Jack Soslow reposted

Roblox averaged 23 month paying user lifetimes at its IPO. Candy Crush had 6 months. Roblox had flattening retention, Candy Crush steep. You can build a massive co with long or short lifetimes, but it's much easier to grow when you don't need to keep refilling an empty bucket.

6) "Flattening retention" is the holy grail. It's why apps like Discord, Roblox, and Fortnite show consistent growth despite not having sky-high early retention numbers.

JackSoslow's tweet image. 6) "Flattening retention" is the holy grail. It's why apps like Discord, Roblox, and Fortnite show consistent growth despite not having sky-high early retention numbers.


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