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You see, one thing is, I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong.

I have approximate answers and possible beliefs and different degrees of certainty about different things, but I'm not absolutely sure of anything and there are many things I don't know anything about, such as whether it means anything to ask why we're here and what the question might mean.

I might think about it a little bit and if I can't figure it out, then I go on to something else, but I don't have to know an answer, I don't feel frightened by not knowing things, by being lost in a mysterious universe without having any purpose, which is the way it is really in so far as I can tell.

It doesn't frighten me.

Richard Feynman

Wikimedia Community Logo.svg This user is an administrator and OAuth administrator on Meta-Wiki. (verify)

The majority of my work involves the development and maintenance of wiki tools. I also work as a research scientist at the Wikimedia Foundation (as User:Halfak (WMF)). All of my research, whether staff or volunteer, ends up in the Research:Index. I also like to Wikipedia articles relating to computer science, mycology, psychology and philosophy.

Other accounts

I own and use User:PermaNoob, User:GLTester and User:Wiki labeler for testing user scripts. I only use those accounts to perform test edits or to test new interface modifications. Edits I perform as a WMF staff member mostly occur through User:Halfak (WMF). All of my work on the wiki comes from this account.

My essays

Tools I've developed

  • ORES is a AI prediction as a service. It hosts machine learning models for predicting vandalism, article quality, etc.
  • Wiki labels is a generalized, crowdsourced labeling system for Wikipedia. (see also en:WP:Labels)
  • Snuggle supports wiki-mentors by allowing them to find desirable newcomers that need mentorship.
  • Mr. Clean allows readers to insert cleanup templates in articles.
  • Wikignome allows edits to individual sentences while viewing an article.
  • NICE is an experimental interface that asks reverting editors to be nice to newbies.
  • HAPPI add highlighting to edit pane to visually present information about who last editing wiki-markup and how long ago.
  • NOOB adds a visualization of editor experience to talk pages and the revision history page.
  • APS Review is a review system for APS:WI to allow members to more easily submit reviews of the articles that they read.


The Full-acre barnstar
The Wikidoop barnstar
Brilliant Idea Barnstar Hires.png The Brilliant Idea Barnstar
The Snuggle tool looks like a great concept. Thanks for working on this! Pine 08:55, 21 December 2012 (UTC)


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