Communication complexity of pointer chasing via the fixed-set lemma

TL;DR

This paper presents a straightforward proof establishing a precise lower bound on the communication complexity involved in the pointer chasing problem.

Contribution

It introduces a simple and direct proof technique for the tight communication lower bound in pointer chasing.

Findings

Established a tight lower bound for pointer chasing communication complexity.

Provided a simplified proof approach for the lower bound.

Clarified the fundamental communication requirements of pointer chasing.

Abstract

I give a simple proof of a tight communication lower bound for pointer chasing.