In the future, it might be possible for general-purpose forecasting platforms to accept functions as forecasts. Question writers would provide function definitions, and forecasters would provide programmatic functions.
This workflow would be significantly more complicated than current forecasting platform workflows, but it could be far more scalable and general.
There are some platforms like Kaggle that might have arguably done this for very limited domains and uses. However, forecasting platforms like Manifold/Metaculus/Prediction Markets are much more general-purpose and have a different workflow.
Definitions
"Popular Forecasting platform"
A forecasting website, like Manifold/Metaculus/Kalshi. It must have at least 100 unique users per month to qualify.
"Function definitions as forecasting questions"
A question writer can propose a fairly-arbitrary function definition. For example, "For any time T from 2024 to 2030, and any stock ticker name, predict the company valuation".
(time: [2024 to 2030], tickerName: string) => distribution
Forecasters would forecast by uploading programming functions or providing API endpoints that would call programming functions.
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I couldn't check exactly if Squiggle Hub has 100 active users per month, but I have some related metrics (like weekly users who made at least 1 edit) and they don't seem promising (around 10 per week, I'm sure there was overlap between weeks).
Also, Squiggle Hub very arguably doesn't have forecasting functionality - it was really just there for demonstration, was never fully used.
#CanonicalQuestions
It's late in the year, and nothing except for Squiggle Hub has it. I could look at the logs, but am not sure if Squiggle Hub has 100 unique users per month.
I'll say that a "user" means someone who logged in, not someone who just visited the site. (As visiting the site could be a bot, or could be something very minimal).
We're planning on adding some simple integration with Squiggle Hub - but Squiggle Hub isn't really a "popular platform".
That said, as I look at the definition, it says "It must have at least 100 unique users per month to qualify.", which is actually fairly low. Right now maybe Squiggle Hub has ~30 users per month or so, so it seems likely this will be a success.
@OzzieGooen I started off betting "no", because no other forecasting platforms seem to be adding this functionality, but then I re-read that part of the question.
We at QURI have been working on Squiggle, which is a programming language custom-built for this sort of thing. However, I imagine it might be difficult to get Squiggle (or similar) for it to be used in a popular forecasting platform, as the complexity is significant.
There's one possible edge case where a popular forecasting platform allows for these, but it's done poorly, and no one uses them. If this happens, I'd still resolve this question as a YES. The key thing is the support, not the use. (Happy to add other questions for that part, though)
https://www.squiggle-language.com/