# Meta-system
## MicroSim spec
- **Recommended sim type:** growth/decay curve
- **Microsimmability score:** 68/100
- **Layout:** value-vs-time curve on the canvas with a live readout; sliders below.
### Parameters (tunable controls)
- `Rate constant`
- `Initial value`
- `Carrying capacity`
### What animates
A quantity rises or falls along its curve; the trajectory and rate of change update live as the rate constant changes.
### Learning objective
Relate the rate constant to exponential vs. saturating growth or decay.
## Links (Wikipedia order)
<!-- injected from _registry/childlinks/Meta-system.json (2026-07-30T02:09:12Z) -->
`Aurelio_Peccei` · `Environmental_degradation` · `Meta_(prefix)` · `Population_health` · `Poverty` · [[System]] · `Urban_decay`
> p5.js MicroSim stub · part of [[System]] · [Wikipedia source](https://en.wikipedia.org/wiki/Meta-system)
> Relation: subfield of System.
## Concept summary
A metasystem or meta-system is a "system about other systems", such as describing, generalizing, modelling, or analyzing the other system(s). It links the concepts of a system and meta.
## Build checklist
- [ ] Claim it: set `status: in-progress` + `lease` + `leased_at`
- [ ] Write the child page explaining the concept (tie it back to system)
- [ ] Finalize parameter ranges and defaults
- [ ] Implement the p5.js sketch (drawing + control regions)
- [ ] Add caption + the learning objective on the page
- [ ] Set `status: done`
## p5.js sketch
```javascript
// MicroSim: Meta-system
let controls = {};
function setup() {
// createCanvas(...); create sliders for the parameters above.
}
function draw() {
// background(...); read controls; render growth/decay curve; respond live.
}
```
---
Back to [[System]] · Wikipedia: [Meta-system](https://en.wikipedia.org/wiki/Meta-system)
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<!-- SEMIOTIC-PROFILE:START -->
## Semiotic profile
> *The semiotic universals this article invokes, machine-derived from the crossref — **unverified** (born so). Populated 2026-07-06 for the Systems room.*
**Universals (3):** 🟡 system (17) · 🟢 exponential (5) · 🟢 saturation (2)
**Enter by sign:** Systems Semiotic Gateway · Alphabetum · Icon Registry · ← Systems Portal
<!-- SEMIOTIC-PROFILE:END -->
## Wikipedia : Wikitube
**Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Meta-system) : [Wikitube](https://en.wikitube.io/wiki/Meta-system)
## Previous hub tags
Tree parent: [[Systems_theory]].
Legacy hubs: none.
---
*Sources: 1 legacy note. Minted wave 1, 2026-07-30 (v1.6 order).*