← Entropy Atlas
Reproducible randomness
Scientific simulation
Pseudorandom sequences stand in for uncertain processes inside a model.
Evaluation card
What “plenty” means here.
- Required property
- A generator whose period, dimensional behavior, and stream-splitting fit the simulation.
- If it fails
- Hidden correlations interact with the model, or a missing seed makes a result impossible to reproduce.
- Relevant attacker
- No adversary in ordinary work; the model and generator combination is the object of scrutiny.
- The Plenty Line
- Use an established simulation generator, document it, and repeat conclusions across independent seeds.
- Why more is not automatically better
- A CSPRNG may add cost without scientific benefit, while unrecorded physical entropy harms reproducibility.
Where it appears
Recognize the pattern.
- 01weather ensembles
- 02particle simulation
- 03epidemic models
The Plentropy rule
Protect the requirement, then stop.
Use an established simulation generator, document it, and repeat conclusions across independent seeds.
Once that claim has comfortable evidence and margin, improve the next limiting factor instead of worshipping a larger entropy number.