Maybe it would be feasible now, since Unity introduced the new job system, a scriptable render pipeline, and HPC# (high performance C#) with the Burst compiler.

Maybe it would be feasible now, since Unity introduced the new job system, a scriptable render pipeline, and HPC# (high performance C#) with the Burst compiler. But these features didn't exist when Teardown started development, and right now they still seem to have some warts (the DOTS stack still seems to be a bit unstable and subject to frequent change)