Welcome. I’m Yudhanjaya Wijeratne (@yudhanjaya), an SFF author, data scientist and misinformation researcher. I’m from Colombo, Sri Lanka.

Please note: this site is deprecated. I’m moving to Coda and will be replacing this WordPress instance in a few weeks.

For more information about me, including contact points, see /about.

These are the things I’m currently working on:

  • Watchdog.team. This takes up 90% of my time these days.
  • Letters from the Apocalypse: a novel over email, about a group of superpowered extremists taking down a Kafkaesque government.
  • For The Greater Good, a book on the state’s need for data, from the Maurya Empire to modern-day smart cities. As well as how things can be made much better – or much worse.
  • A novel called Origami Meteorite. I’ll talk more about it when I have something worth showing.

So, what are you interested in?


I’ve written a number of novels (Numbercaste, The Inhuman Race and sequels, The Salvage Crew). I write primarily in the field of SFF; it’s a vast canvas that lets me toy with ideas I find interesting.

My writing has been nominated for the Nebula and the IGF Excellence in Narrative awards. I think of it like my programming: lots to do, lots to learn, all sorts of discoveries and mistakes waiting to be made.

Here -> are some short stories: they’re an easy way to dip your toes and see if you like my work.


Click here to read my research / nonfiction, including op-eds, papers and reports. Most of my work is around misinformation, computational linguistics, and social networks.

Oddball Projects

I work on a fictional, open-source city called Witness over at the SciFi Economics Lab. Check it out! We’ve written lore, designed cults around rational risk-taking, and designed games to let people test out policies from vastly different social contracts against an oncoming apocalypse.

I also write an infrequent newsletter called TILT, aka Things I Learned Today. Subscribe here.


I have an actual blog on this site. The use case is increasingly rare – social media is a better index of my thoughts – but sometimes you need a blogpost to record something.


The Ricepunk Manifesto
Some time ago, I tried to capture the framing I wanted to explore in my writing. Time will tell whether I stick to this or not, but people seem to find it interesting.

Icaruswept. Records of my old blog, which I ran for something like seven years. I saved some content from those times. This is mostly nostalgia, but you can read them here if you like.

Project E.C.H.O. In 2012, a few friends and I set out to make a videogame. It didn’t quite work out; we made a demo, but destroyed our friendship in the process. Here’s what’s left.