iPhone 6s
ƒ/2.2
4.15 mm
1/15
2000

following a Long Now discussion of his new book ON THE FUTURE: Prospects for Humanity.

Some juicy quotes:

“We are most likely to find electronic alien intelligence.”

Q: If you were 25, what would you devote your life to researching?
A: “Exoplanets and the origin of life. And computer intelligence.”

“Space is a great place for robots. Space is where change will happen the fastest and should worry us the least.”

“The future of human space flight lies with privately funded initiatives.”

“The Great Leap Forward will be footsteps on Mars not just the moon.”

“We need to save Earth’s climate. There is no planet b. But we should cheer on the Mars explorers. They will usher our post-human future. Mars will move beyond our regulators. It will offer the first step toward our divergence into a new species. Mars will spearhead the post human era.”

“Rodney Brooks argues it will be a long time before AI is a greater worry than general stupidity.”

“For the first time in 47 million centuries, the fate of the planet is in the hand of one species.”

“Research into clean energy should be resourced as much as medical research.”

“Artificial meat is a wonderful new technology.” [go Memphis Meats, go!]

“Mass extinction is the sin that future generations will least forgive us for.”

“We’ll need continental-scale DC grids.”

“Pandemics, natural ones, could have far more impact on humanity today. In the past, people muddled on with huge death rates. Today, we would face serious unrest once hospitals break down, and that would happen before a 1% were infected.”

“The global village will have its village idiots, and biotech gives them global range.”

Our dinner gathering was particularly fond of his prior book Just Six Numbers: The Deep Forces That Shape The Universe

6 responses to “Dinner with Lord Martin Rees, Astronomer Royal, and The Long Now Foundation”

  1. show and tell… one of his favorite possessions And Alison van Diggelen interviewed Martin Rees last night and had a lively and humorous conversation. Here’s the Commonwealth Club podcast for those who missed Long Now.

  2. “There is no planet b." – Amen.

    “For the first time in 47 million centuries, the fate of the planet is in the hand of one species.” – Bah. The planet will be fine no matter how bad we fuck it up…including to the point where all of us are gone. We have too high an opinion of our "awesome powers of destruction." But no doubt, we can self-hurt to the point of near human extinction and take a large part of the current biosphere with us…all because we don’t rally and make the transition to being better "anthropocene" stewards…which we will…b/c we have to and humans are insanely great survivors.

    ps: Rees’ recent podcast with Rob Ried was fantastic > after-on.com/episodes-31-60/037z

  3. Yes, the cockroaches and sub-surface archaea will be just fine.

    Speaking of Rob, he did a great interview of the Harvard Astronomy Dept. Chair on the interstellar object that flew by our sun and then accelerated away from us, the signature possibly of a solar sail on an alien craft purposely sent here: after-on.com/episodes-31-60/040

    Reminds me of Rendezvous with Rama

  4. ‘Oumuamua (the interstellar object that flew through the solar system) was remarkable, but there’s no real reason to think it was artificial. If you’re interested, here’s a link to the Keynote talk that I gave at the American Astronomical Society meeting in Seattle earlier this month (it’s a 45MB Apple .key file with some very cool animations that show how the light curve can be interpreted).

    yale.box.com/s/ej1mnucu2xjrhj6suoto0u595k9rjrf5

  5. [https://www.flickr.com/photos/oklo] — thanks for sharing! So, is the argument that asymmetric outgassing from solar warming can explain the acceleration?

    And Oumuamua does not likely have a active guidance, because "in very high likelihood,
    it will never have another close encounter with a main-sequence star." (slide 25)?

    Also, are you saying that 2014 MU69 will slowly accelerate for 7 billion years? If so…. whoa!

  6. Transient jets of sublimating near-surface volatiles (likely H2O or CO2) that roughly track the Sun readily explain the acceleration.

    A nice concordance arises because the observed max-to-max period in the light curve, T, and the observed non-gravitational acceleration, a, imply a D ~ (T/pi)^2 a ~ 100 meter-sized physical pendulum. To order of magnitude, this size agrees with the completely independent size estimate stemming from the observed brightness.

    In the event that it were actively controlled, one would need to damp the chaotic tumbling and then accurately predict the complex fine-grained time-evolving gravitational field of the galaxy in order to schedule similarly close future approaches to additional stars.

    In all likelihood, ‘Oumuamua will require roughly a quadrillion years to have a similarly close encounter with another star, but by that time, even the lowest mass red dwarfs will have long since expired.

    2014 MU69 will continue to orbit the Sun as-is for ~6 billion more years. But when the Sun reaches its largest red giant luminosity, the flux at MU69 will be roughly what Earth currently gets. MU69 will then outgas the volatiles that make up the bulk of its mass, and be left as a far smaller rubble pile of loosely consolidated debris.

    (Amusingly, the Tesla roadster attached to the upper stage produces a light curve and spectrum that are not at all dissimilar to ‘Oumuamua’s.)

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