The Hard StackThe Hard Stack by Kunal Ranjan
Venture Capital · Physical AI

The Hard Stack

Where software meets steel.

Selected essays

Writing

All articles
Where I spend my time

Research Focus

GFM / World Models

Large-scale models for physical reasoning, perception, and multi-task robotic control.

Consumer Robotics

Home and personal robots that operate in unstructured human environments.

Autonomous Vehicles

Self-driving systems from passenger cars to last-mile delivery and logistics.

Industrial Robotics

Factory, warehouse, agriculture, and construction automation at scale.

Robotics Infrastructure

Simulation, synthetic data, compute, and tooling that the whole stack runs on.

Edge Computing

On-device inference, embedded AI, and latency-critical processing for physical systems.