# X6, explained simply

A guide for curious readers, learners and people who want to check the work themselves. No specialist knowledge is needed to get started.

[Deutsch](https://thomasmgfeller.github.io/x6-spectral-astrolabium/wiki/de/) · [Wiki overview](https://thomasmgfeller.github.io/x6-spectral-astrolabium/wiki/en/)

Source snapshot: 2026-10-16 · `08c64744caa584c940b45a8825d0b099ae0c92fb`

## What is X6?

X6 Spectral Astrolabium is an open research workshop maintained by Thomas Gfeller. It brings together small browser labs, reproducible mathematical examples and research plans. The shared question is: what can we reliably learn from measured signals and relationships between events?

Think of a toolbox accompanied by a lab notebook. A tool calculates something; the notebook explains its inputs, results and limits. A successful example does not make every tool suitable for every purpose.

## Where would you like to begin?

| Your goal | Suggested starting point |
| --- | --- |
| Try something without installing software | Quick start → Signal Validation Lab |
| Understand the plots | Signals and filters |
| Understand networks and possible spacetime structures | Causal orders |
| Read a result critically | Understanding evidence |
| Find a particular project | Research areas |
| Look up an unfamiliar word | Glossary |

The chapter menu covers both language editions. Switching languages opens the corresponding article. Use your browser’s Find function to search within a page.

## What can you use today?

- Browser applications for signals and finite causal orders.
- Computational references with source code, test cases and documented counterexamples.
- A local workflow for running, verifying and exporting experiments.
- Research plans for further mathematics, industrial applications and laboratory work.

X6 is a public research preview. It does not establish a general spacetime theory, a qualified quantum chip or superior industrial denoising. This describes the available evidence, rather than deciding which questions might eventually be solved.

- [Project portal](https://thomasmgfeller.github.io/x6-spectral-astrolabium/)
- [All registered modules](https://thomasmgfeller.github.io/x6-spectral-astrolabium/modules/)
- [Scientific scope](https://github.com/thomasmgfeller/x6-spectral-astrolabium/blob/main/docs/SCIENTIFIC_SCOPE.md)