I just came across a very interesting early interview record, about the technical background story of Solana's founder Toly. This guy's engineering experience is actually quite hardcore—he worked as a core developer of the BREW operating system kernel at Qualcomm, and he really wrote more than half of the kernel code, also responsible for low-level work like compilers and code generation.

This experience made me find it especially interesting because it explains why Toly was able to come up with Proof of History later on. During his time at Qualcomm, he deeply studied DSP architecture and modern mobile chip design, understanding how to compress so many components onto a single silicon chip. From a distributed systems perspective, time synchronization has always been a difficult problem. Toly approached it from this angle, thinking of solving network node synchronization by "encoding time into data."

This innovation of Proof of History later became the core competitive advantage of Solana—allowing nodes on the chain to update state faster and more consistently. From this perspective, Solana's high-performance architecture didn't come out of nowhere; it is built on Toly's solid system-level engineering experience. Sometimes, the innovation of a project is just a natural extension of the founder's years of technical accumulation.