# One bit to rule the planner: SIML FEPGate + V-JEPA 2

A lab experiment coupling a one-bit surprise gate to a frozen latent planner.

Date: October 15, 2025
Type: Benchmark
Status: Reported benchmark
Credit: Author and researcher
Authors: Richard Everts

## A small intervention in the planning loop

This experiment adds a SIML surprise signal to the candidate-selection loop of a frozen V-JEPA 2 planner. The encoder and predictor are left unchanged; the intervention operates on planning candidates rather than retraining the model.

The lab reports comparisons of final reaching error, per-step latency, and estimated energy use under the same planning budget. The method, setup, and implementation links are available in the original report.

## How to read the result

These are reported lab measurements from a particular experimental setting, not an independently replicated claim about all world models. The interesting research question is whether a compact feedback signal can help a planner use computation more selectively.

The experiment extends the earlier technical note on predictive representations and forms part of Deep SIML's continuing work on simulation and efficient decision systems.

## Sources
- [Benchmark report](https://www.siml.life/research/VJEPA2-siml-fepgate)