[TenOhms]

How hard is it for games to ignore SLI entirely and simply use a second or third GPU to offload things like post-processing effects ?

Or even better, how about if you had 3 1080 Ti's and 3 monitors, could the application/game just easily assign one GPU per monitor without having to resort to using SLI (which has such a bad reputation)? This would make things so simple, want an extra monitor or two? Just add a GPU to power them. I cant imagine that the coding for something like this would be anywhere near as complicated as SLI/Crossfire.

[sand500]

I think you can do that using some virtualization software. Really depends on the graphic card drivers and game engines to expose that ability to the actual game programmers.