meta-maieutics
When we are tired, we are attacked by ideas we conquered long ago.

Friedrich Nietzsche (via hienny)

Same goes for hungry, sick, dehydrated and drunk, and if you’re any of these things regularly enough, you’ll start to be defined by these ideas all over again, because everything feels insurmountable when you’re too physically drained to process anything properly.

(via meta-maieutics)

I’ve been reading Proust Was a Neuroscientist. Jonah writes about Walt Whitman, who (ahead of his time) thought of mind and body as inseparable (as we now know, via neurology) and how ironic it was that when he died, his body was found to be entirely sickly — ravaged by neglect. Typical artist.

frrrst
frrrst:

Ara Norenzayan, Will M. Gervais – The origins of religious disbelief

Although most people are religious, there are hundreds of millions of religious disbelievers in the world. What is religious disbelief and how does it arise? Recent developments in the scientific study of religious beliefs and behaviors point to the conclusion that religious disbelief arises from multiple interacting pathways, traceable to cognitive, motivational, and cultural learning mechanisms. We identify four such pathways, leading to four distinct forms of atheism, which we term mindblind atheism, apatheism, inCREDulous atheism, and analytic atheism. Religious belief and disbelief share the same underlying pathways and can be explained within a single evolutionary framework that is grounded in both genetic and cultural evolution.


Interesting.

frrrst:

Ara Norenzayan, Will M. GervaisThe origins of religious disbelief

Although most people are religious, there are hundreds of millions of religious disbelievers in the world. What is religious disbelief and how does it arise? Recent developments in the scientific study of religious beliefs and behaviors point to the conclusion that religious disbelief arises from multiple interacting pathways, traceable to cognitive, motivational, and cultural learning mechanisms. We identify four such pathways, leading to four distinct forms of atheism, which we term mindblind atheism, apatheism, inCREDulous atheism, and analytic atheism. Religious belief and disbelief share the same underlying pathways and can be explained within a single evolutionary framework that is grounded in both genetic and cultural evolution.

Interesting.

frrrst
Despite some claims by anthropologists in the 1970s, human beings are not the only species that engages in war or kills its own kind. It now appears that chimpanzees guard their territory, raid the territory of rivals, and, if they can pull it off, kill the males of the neighboring group and take their territory and their females. And it now appears that warfare has been a constant feature of human life since long before agriculture and private property. For millions of years, therefore, our ancestors faced the adaptive challenge of forming and maintaining coalitions that could fend off challenges and attacks from rival groups. We are the descendants of successful tribalists, not their
more individualistic cousins.
Jonathan Haidt – The Righteous Mind (via frrrst)

kerberos30 asked:

Hello Olena, I really appreciate your works.I wonder if it's possible for you to send me a virtual copy of your work 'Oh deer' in big resolution.I will be really happy if you can do so.

Thank you. That’s not something I do. A hi-res copy is essentially a printable, reproducible copy that’s usually purchased with a license and usage agreement.

The Amplituhedron is the “jewel”-like, theoretical geometric structure (actually a mathematical tool) that’s been making the rounds in science news. The summary linked above appears fairly solid and unbiased, so far as I can tell.

Philip Gibbs

so far it is only applicable to the planar limit of one specific quantum field theory and it is not one encountered in nature. It is therefore very premature to say that this makes conventional quantum field theory obsolete.

On its own the theory is very interesting but of limited use. The real excitement is in the idea that it extends in some way to theories which could be physical.

Part of the story of the amplituhedron is the idea that space, time, locality and unitarity are emergent. This is exciting because people have always speculated that some of these things may be emergent in theories of quantum gravity. In my opinion it is too strong to call this emergence. Emergence of space-time implies that space and time are approximate and there are places such as a black hole singularity where they cease to be a smooth manifold. The amplituhedron does not give you this.

They will have to find a way to go beyond the planar limit, generalise to higher dimensions, include gravity and identify the relevant symmetries for string theory. Then there is just the little issue of relating the result to reality. It could be a long road.

inthenoosphere
I see a strong parallel between the evolution of robot intelligence and the biological intelligence that preceded it. The largest nervous systems doubled in size about every fifteen million years since the Cambrian explosion 550 million years ago. Robot controllers double in complexity (processing power) every year or two. They are now barely at the lower range of vertebrate complexity, but should catch up with us within a half century.
Hans Moravec (via inthenoosphere)
astronomnomy

Seven tips for (Physics) Freshers: Things to Keep in Mind As You Begin Your Journey

astronomnomy:

Congratulations for picking a really fun and satisfying subject to study! As someone who’s been through it all already (MSci Theo Phys and am in the midst of an Astro PhD) I thought, in honour of the first day of term, I would impart some old-people wisdom for those just starting their first classes - mistakes I made so you don’t have to…

Read More