von Neu­mann probes and Dyson spheres: what ex­plo­ra­tory en­g­ineer­ing can tell us about the Fermi paradox

[Link] Re­con­struct­ing Speech from Hu­man Au­di­tory Cortex

De­cid­ing what to think about; is it worth­while to have uni­ver­sal util­ity func­tion?

State your phys­i­cal ac­count of ex­pe­rienced color

Open Thread, Fe­bru­ary 1-14, 2012

Writ­ing ra­tio­nal­ist fic­tion: Im­prov­ing an ex­ist­ing set­ting?

Another Real World Ex­am­ple of Cog­ni­tive Bias

Hugo Awards—HP:MoR (part 2)

“The Con­di­tional Fal­lacy in Con­tem­po­rary Philos­o­phy”

Ex­is­ten­tial risk for non-consequentialists

Is risk aver­sion re­ally ir­ra­tional ?

Dar­win Day: Good Evolu­tion Games?

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Do­ing Science! Open Thread Ex­per­i­ment Results

Risk aver­sion vs. con­cave util­ity function

Against Utili­tar­i­anism: So­bel’s at­tack on judg­ing lives’ goodness

[SEQ RERUN] Fal­la­cies of Compression

Does func­tion­al­ism im­ply du­al­ism?

Meetup : Cam­bridge UK

Water­fall Ethics

Ter­mi­nal Bias

Meetup : LessWrong Megameetup

Hack­ing Less Wrong made easy: Va­grant edition

Re­post: Effi­cient Char­ity: Cheap Utilons via bone mar­row registration

Work­ing Through the Con­trol­led De­mo­li­tion Conspiracy

[LINK] Sur­viv­ing the World on Vasili Arkhipov Day

Char­ity when time isn’t con­vert­ible to money?

Cat­a­loging my skills—good idea?

There’s learned philoso­phers but not philo­soph­i­cal experts

Per­sonal re­search update

The util­ity of in­for­ma­tion should al­most never be negative

Faus­tian bar­gains and discounting

Ra­tional vs. real util­ities in the cousin_it-Nesov model of UDT

What are your bench­marks of ra­tio­nal­ity?

Effi­cient Char­ity: Cheap Utilons via bone mar­row registration

Toward “time­less” con­tin­u­ous-time causal models

Self-Indi­ca­tion As­sump­tion—Still Doomed

Let’s fix the RSS feed so it doesn’t re-post ar­ti­cles ev­ery time their ti­tles are ed­ited (for­got the hy­phen in “re-post”)

Trust

[META] My Nega­tive Results

The Per­son­al­ity of (great/​cre­ative) Scien­tists: Open and Conscientious

The Ells­berg para­dox and money pumps

The Ne­glected Virtue of Curiosity

Meetup : Atlanta

HPMOR: What could’ve been done bet­ter?

The Sub­sti­tu­tion Principle

Help! Name sug­ges­tions needed for Ra­tion­al­ity-Inst!

De­liber­ately try­ing to an­noy simu­la­tors?

Ev­i­dence For Simulation

Meetup : In­ter­est in Rea­son Rally meetup?