# Fast scrambling as Brownian motion in a fluid with negative viscosity

## TL;DR

This paper proposes that black hole information scrambling can be modeled as Brownian motion in a negative viscosity fluid, suggesting that perceived non-locality is an illusion created by an amplifying medium.

## Contribution

It introduces a novel model linking fast scrambling to Brownian motion in a negative viscosity fluid, challenging the notion of inherent non-locality in black hole physics.

## Key findings

- Black hole scrambling modeled as Brownian motion in negative viscosity fluid
- Negative viscosity fluid acts as an amplifying medium, mimicking non-locality
- Illusion of superluminal communication arises from the medium's properties

## Abstract

It is shown that the fast scrambling of information in a black hole can be viewed as Brownian motion of information in a fluid with negative viscosity (and negative temperature). It is argued that a non-local character of the fast scrambling is only an illusion; the stretched horizon with negative viscosity is an amplifying medium that mimics non-locality and superluminal communication.