For people looking for how far back prior art goes, Looking Glass developed an ECS for the Dark Engine on the Thief games (& Irrational used for System Shock 2)

For people looking for how far back prior art goes, Looking Glass developed an ECS for the Dark Engine on the Thief games (& Irrational used for System Shock 2) in the late 90s. The version Unity's been building with DOTS was, I believe, being headed by Mike Acton, who's been advocating for years for everyone in the industry to abandon OOP and switch to data-oriented systems. I wonder what he thinks about this.