Nanite technology in Unreal Engine minimizes visible transitions in geometry, making them statistically present but not perceptible to the viewer.

The evolution of Unreal Engine from 1 to 5 has been marked by significant performance gains in hardware, allowing for increasingly realistic graphics and dynamic environments, but the biggest limitation remains its single-threaded nature of game simulation, complicating game logic and making multi-thread programming more challenging.

The optimization of rendering in Unreal Engine was a significant challenge, focusing on reducing the cost of rendering pixels to improve performance.

We're working on Unreal Engine 6 to address core limitations that have persisted throughout the history of Unreal Engine, aiming to provide a better foundation for modern computing needs.

Nvidia's key advantage lies in its integrated solution, which includes networking with InfiniBand, CUDA software, and a developer-friendly experience, allowing AI researchers to effectively program GPU clusters as a unified system.

Unreal Engine was initially developed in C, later transitioning to C++ for better performance and maintainability, which was crucial for the game's success.

The transition from single-threaded to multi-threaded programming in Unreal Engine is a daunting engineering challenge, requiring a complete rethink of how programming languages and systems are structured.

The introduction of GPUs changed the landscape of game development, but much of Unreal Engine's early development focused on software rendering before real GPUs became available.

The development of Unreal Engine involved a collaborative effort from a diverse team, where constant iteration and improvement were key to success.