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Nice brief overview of the five theses that give reason to be worried about advanced AI.
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Machine Intelligence Research Institute | Five theses, two lemmas, and a couple of strategic implications
MIRI’s primary concern about self-improving AI isn’t so much that it might be created by ‘bad’ actors rather than ‘good’ actors in the global sphere; rather most of our concern is in remedying the sit…
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Alexander B Fry writes a nice overview of where we're at with regards to understanding dark matter.
Either dark matter exists or it doesn’t. If it exists, then either we can detect it or we can’t. If it doesn’t exist, either we can show that it doesn’t exist or we can’t. The observations that led astronomers to posit dark matter in the first place seem too robust to dismiss, so the most common argument for non-existence is to say there must be something wrong with our understanding of gravity – that it must not behave as Einstein predicted. That would be a drastic change in our understanding of physics, so not many people want to go there. On the other hand, if dark matter exists and we can’t detect it, that would put us in a very inconvenient position indeed.
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Alexander B Fry – On dark matter
Dark matter is the commonest, most elusive stuff there is. Can we grasp this great unsolved problem in physics?
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 It's around 50km long.  The asteroid has a moon called Dactyl that you can to the right that's about 1.5km in diameter and orbits it at around 90km.Â
Pictures taken in 1993 by the Galileo spacecraft en route to Jupiter. Â This is when Dactyl was discovered. Â Ida itself was discovered in 1884.
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I laughed when I got to the end.
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According to Darren Naish in his book All Yesterdays, this is what a modern baboon looks like when reconstructed from it's skeleton using the same techniques artists use to reconstruct dinosaurs from their skeletons.
(H/T to Quora for this: Â http://www.contriving.net/link/bm)
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Snake robots are cool
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Snake robots are cool
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Reshared post from +Kaj Sotala
Neat. Via +Pyry Pakkanen.
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It's not uncommon for me to get stuck on a programming problem and go start composing a forum post explaining my problems and asking for some help.
In the process of explaining my problem in enough detail and in a structured-enough manner to explain it to other people I realize the solution to my issue.
This also happens when I write docstrings.
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