Multi-threaded love for more blender functions

As beast multi-core computers get more and more mainstream it seams to make sense to update some functionality to utilise those multi core beasts. Some functions I noticed using only one thread what I think could use more:

<b>Dependency graph</b> whenever creating a new object, selecting one or editing in edit mode, removing one in a complex scene can take a whole lot of time. I guess it or some of it could be done on a multi threaded basis.

<b>Shader compiling</b> for eevee okay it hapens once when you start working but in complex files it can take a while.

<b>File operations</b> I don't know how much we could benifit from it becouse multiple things can cause bottlenecking with files but its just an idea that it may be nice to consider

<b>VSE</b> Its allready proposed and maybe eaven worked on so just puting it here for completions sake

<b> simulations </b> Its proposed allready