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'A Universe From Nothing' by Lawrence Krauss, AAI 2009

Richard Dawkins Foundation for Reason & Science · lecture · Watch on YouTube

Cosmology & astrophysicsReligion, belief & skepticism

What it is

Lawrence Krauss's 2009 talk on the current picture of the universe, how it will end and how it could have come from nothing. It covers the expanding universe, cosmic background radiation and the cosmological constant.

Why Hacker News recommends it

HN regards it as a famous, mesmerizing talk, especially for the point that distant galaxies will become unobservable.

  • 7 people recommended it
  • 7 different months
  • 2 strong recommendations
  • first 2009, last 2024

What HN commenters said

  1. “It had me mesmerized and mystified for the whole run.”

    Krauss talk on the universe from nothing.

    ZenzerNet, 2009-11 · Strong recommendation · in “Weird Physics Facts”

  2. “There is also one of my favorite talks tangentially related by Lawrence Krauss.”

    Future civilizations will see only their own galaxy and misjudge the universe.

    atomi, 2020-12 · Strong recommendation · in “The universe is expanding faster than expected”

  3. “here is a lecture on one explanation for why the universe does not need any first cause,”

    Lecture explaining why the universe does not need a first cause.

    joelangeway, 2010-09 · Recommendation · in “Stephen Hawking's answer to God question tiresome”

  4. “how mercilessly correct he is about physics of our space-time”

    Explains how distant galaxies will become unobservable as the universe expands.

    goblin89, 2012-04 · Recommendation · in “Notch's next game is an MMO”

  5. “Lawrence Krauss talked about this in his entertaining and famous talk”

    Krauss's entertaining and famous talk on this topic.

    2Pacalypse-, 2014-06 · Recommendation · in “The Disappearing Universe”

  6. “i'd recommend the entire lecture”

    Anecdote about Hubble's failed 1929 expansion-rate attempt, plus a log-log joke.

    justifier, 2017-07 · Recommendation · in “Why isn't everything normally distributed?”

  7. “Listed among long-form info-dense video recommendations.”

    Isinlor, 2021-12 · Recommendation · in “Ask HN: Long-form info-dense videos on YouTube you would recommend to anyone?”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: lawrence krauss, universe from nothing, expanding universe, physics, cosmological constant

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