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Fifty Years
2,923 posts
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Fifty Years
@fiftyyears
Make something civilization needs. Helping great scientists and engineers become great entrepreneurs is our jam.
San Francisco, CA
substack.fiftyyears.com
Joined July 2016
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@fiftyyears

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  • Pinned
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    Fifty Years
    @fiftyyears
    Oct 13, 2024
    Make something civilization needs.
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  • Fifty Years reposted
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    Sumner L Norman
    Merge Labs
    @SumnerLN
    9h
    Build things that matter. Period.
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    Seth Bannon
    Fifty Years
    @sethbannon
    11h
    Ten years ago, almost everyone told us the same thing: back companies solving humanity's biggest problems, and you'll have to accept lower returns. Today we sent our LPs a note announcing that Fifty Years Fund I has reached 7.5x DPI.
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  • Fifty Years reposted
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    Vinod Khosla
    @vkhosla
    7h
    Congratuations! Great job and great partner for us.
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    Seth Bannon
    Fifty Years
    @sethbannon
    11h
    Ten years ago, almost everyone told us the same thing: back companies solving humanity's biggest problems, and you'll have to accept lower returns. Today we sent our LPs a note announcing that Fifty Years Fund I has reached 7.5x DPI.
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  • Fifty Years reposted
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    Aalo Atomics
    @AaloAtomics
    Jul 6
    Aalo was founded 3 years ago. On July 4th, we turned on our first nuclear reactor. Today, we're issuing an open call to technical and non-technical talent: help us unlock global energy abundance. Over the coming years, we will scale assembly-line manufacturing of modular power
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  • Fifty Years reposted
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    Alex Teng
    Fifty Years
    @alexteng101
    Jul 6
    Aalo just went critical on a windswept desert in Idaho.
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  • Fifty Years reposted
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    Seth Bannon
    Fifty Years
    @sethbannon
    11h
    Ten years ago, almost everyone told us the same thing: back companies solving humanity's biggest problems, and you'll have to accept lower returns. Today we sent our LPs a note announcing that Fifty Years Fund I has reached 7.5x DPI.
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  • Fifty Years reposted
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    Office of Nuclear Energy | US Department of Energy
    @GovNuclear
    Jul 6
    FOUR REACTORS CRITICAL BY THE 4TH! 🎉 On July 4 at 12:19 AM MDT, @AaloAtomics’ Aalo-X microreactor achieved initial criticality at @INL, marking the fourth @ENERGY-authorized reactor to go critical this year. Congratulations to Aalo Atomics on reaching this historic
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  • Fifty Years reposted
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    Aalo Atomics
    @AaloAtomics
    Jul 6
    Aalo Atomics brought a commercial-scale advanced reactor to initial criticality on July 4, 2026 at 12:20 AM (MT). This means the President’s goal of at least three criticalities by July 4 has been surpassed, making "4 by the 4th" a reality. Read more ⬇️
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  • Fifty Years reposted
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    Idaho National Lab
    @INL
    Jul 6
    .@AaloAtomics' Aalo-X reactor achieved criticality, becoming the 55th reactor @INL & 4th advanced reactor to go critical by July 4. Congrats! 🇺🇸 INL supported with procedure development, facility construction, operations support, fuel management, environmental compliance & more.
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    U.S. Department of Energy
    @ENERGY
    Jul 6
    Article cover image
    Article
    Department of Energy Celebrates Fourth Criticality Ahead of July 4th Goal
    Early Saturday, as part of the U.S. Department of Energy Reactor Pilot Program, Aalo Atomics’ advanced reactor design, Aalo-X, successfully completed a zero-power fueled criticality demonstration....
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  • Fifty Years reposted
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    Yasir Arafat
    @yasir_fission
    Jul 6
    We’ve gone critical. At 12:20 am on July 4th, Aalo sustained a controlled fission chain reaction for the first time. We have officially surpassed the goal of President Trump’s Executive Order 14301, achieving 4 advanced nuclear reactor criticalities by America’s 250th birthday.
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  • Fifty Years reposted
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    Aalo Atomics
    @AaloAtomics
    Jul 6
    AALO ATOMICS ACHIEVES CRITICALITY MILESTONE; MEETS EXECUTIVE ORDER GOAL From Founding to Fission in Less than Three Years, Aalo on Track to Become the Preeminent Nuclear Power Source for Modern AI Data Centers. AUSTIN, Texas, July 6, 2026 – Aalo Atomics, the company building
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  • Fifty Years reposted
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    Matt Loszak
    Aalo Atomics
    @MattLoszak
    Jul 6
    Very excited to announce that at 12:20am on the 4th of July, Aalo achieved criticality on our first full-scale reactor. We cut it close, but we pulled it off!! Working towards this goal with such an incredible group of humans has been the most fulfilling period of my life. This
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  • Fifty Years reposted
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    Seth Bannon
    Fifty Years
    @sethbannon
    Jul 6
    At 12:20am on July 4th in the Idaho desert, I watched dozens of engineers hold their breath. Then the neutron counters confirmed it: self-sustaining chain reaction. The @AaloAtomics reactor was critical! Everyone erupted. Cheers, hugs, and a few tears. Three years ago this
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  • Fifty Years reposted
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    Seth Bannon
    Fifty Years
    @sethbannon
    Jul 4
    In the Idaho desert ringing in the USA's 250th birthday in the most American way possible -- with founders, engineers, and other dreamers working tirelessly to achieve something most told them was impossible. The goal? Bringing a new nuclear reactor critical 8 months from
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