I only build a new PC about once every four years, and only when I see a "step function" advancement in a particular area that's super exciting.
In this case, the Ryzen 9 3950x was just what I was looking for!
How the system will be used
Day job: lots of analysis jobs that involve building hundreds of Java, Python, C++ and JS programs and performing static analysis
Side job: streaming software engineering instructional video content (key concern: I don't want my compile slowed down by video encoding)
Night job: games
Case choice was inspired by Jayztwocents, and I'm impressed that I've been able to fit 13 120mm fans and dual 480mm + 360mm + 240mm + 120mm rads, all while "un-hiding" the second system, relative to how things were set up in the Evolv X