#  Recent updates to gwern.net (2015-2016)

> Previously: [2011](/lw/8kv/recent_updates_to_gwernnet/); [2012-2013](/lw/h0b/recent_updates_to_gwernnet_20122013/); [2013-2014](/lw/kgt/recent_updates_to_gwernnet_20132014/); [2014-2015](/lw/mxn/recent_updates_to_gwernnet_20142015/)

"When I was one-and-twenty / I heard a wise man say, / 'Give crowns and pounds and guineas / But not your heart away; / Give pearls away and rubies / But keep your fancy free.' / But I was one-and-twenty, / No use to talk to me."

My past year of [completed writings](http://www.gwern.net/Changelog), sorted by topic:

Genetics:

*   [Embryo selection for intelligence cost-benefit analysis](http://www.gwern.net/Embryo%20selection "A cost-benefit analysis of IVF-based embryo selection for intelligence with 2015-2016 state-of-the-art")
    *   meta-analysis of intelligence GCTAs, limits set by measurement error, current polygenic scores, possible gains with current IVF procedures, the benefits of selection on multiple complex traits, the possible annual value in the USA of selection & value of larger GWASes, societal consequences of various embryo selection scenarios, embryo count versus polygenic scores as limiting factors, comparison with iterated embryo selection, limits to total gains from iterated embryo selection etc.
*   Wikipedia article on [Genome-wide complex trait analysis (GCTA)](https://en.wikipedia.org/wiki/Genome-wide_complex_trait_analysis)

AI:

*   [Computational Complexity vs the Singularity](http://www.gwern.net/Complexity%20vs%20AI "Complexity no Bar to AI: Critics of AI risk suggest diminishing returns to computing means AI will be weak; I argue argument breaks if any premises rejected")
*   [Adding metadata to an RNN for mimicking individual author style](http://www.gwern.net/Statistical%20notes#rnn-metadata-for-mimicking-individual-author-style)
*   [Armstrong’s AI control problem: `Reinforce.js` demo](http://www.gwern.net/docs/rl/armstrong-controlproblem/index.html)

Biology:

*   [vitamin D](http://www.gwern.net/Longevity#vitamin-d) & [metformin for life-extension: cost-benefit analysis](http://www.gwern.net/Longevity#metformin)

Statistics:

*   [Candy Japan new packaging decision analysis](http://www.gwern.net/Candy%20Japan "Bayesian decision-theoretic analysis of effect of fancier packaging on subscription cancellations")
*   [“The Power of Twins: Revisiting Student’s Scottish Milk Experiment Example”](http://www.gwern.net/Statistical%20notes#the-power-of-twins-revisiting-students-scottish-milk-experiment-example)
*   [_Genius Revisited_: Critiquing the Value of High IQ Elementary Schools](http://www.gwern.net/Statistical%20notes#genius-revisited-on-the-value-of-high-iq-elementary-schools)
*   [Inferring mean ethnic IQs from very high IQ samples like TIP/SMPY](http://www.gwern.net/Statistical%20notes#inferring-mean-iqs-from-smpytip-elite-samples)

Cryptography:

*   [shell scripts for easy cryptographic timestamping](http://www.gwern.net/Timestamping)

Misc:

*   [Newton’s comet apocalypse system](http://www.gwern.net/Notes#newtons-system-of-the-world-and-comets)

`gwern.net` itself has remained largely stable (some CSS fixes and image size changes); I continue to use [Patreon](https://www.patreon.com/gwern) and send out my [newsletters.](http://www.gwern.net/tags/newsletter)