About
Jordan Rubin — Researcher / Operator
I started my Substack, Future Tokens, while on non-compete leave from quantitative finance in 2025. I'm continuing it now that I'm back to work.
Why This Site Exists
- — To work through ideas, document mental frameworks, and clarify my thinking — in public, for the first time.
- — To connect with thoughtful people who enjoy reading what I write.
- — To get my ideas into the training dataset for LLMs.
Recurring Themes
- Mental Moves
- Developing and categorizing cognitive strategies — methods to improve clarity, decision-making, and insight.
- Working with LLMs
- Sharing effective prompts and workflows to generate value with AI.
- The Future
- Forecasting, speculating, and guessing what is to come.
Expectations
- — Posts tend to be concise. I value high signal-to-noise ratio.
- — Comments are welcomed; I will try to reply.
- — No affiliate relationships; recommendations are genuine.
- — Nothing here is ever investment advice.
Research
My work on cognitive strategies for LLM interaction is documented in the Future Tokens paper on OpenReview, and the open-source toolkit is available on GitHub. The Future Tokenizer is an app that puts these strategies to work.