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[jecowa]

You know you want it.

[FantasticDorf]

Yes but i don't know what i want. 

What does garbage refer to in this context? Walking along throwing body parts in a wheelbarrow or just randomly dropped items to be dumped into a a bridge compactor?

[jecowa]

In computer science, garbage collection is a form of automatic memory management. The garbage collector attempts to reclaim memory that was allocated by the program, but is no longer referenced; such memory is called garbage.

It could possibly fix some bugs and maybe prevent some new ones in the future. Putnam has mentioned bespoke garbage collection a couple times as a dream project.

[anewaname]

Why doesn't properly dereferencing the data already resolve the bugs?

I've seen issues with dfhack routines not removing all references within the DF data structure, and there were/are DF problems with raiding dwarfs and their equipment or squad positions, but in those cases the problem is that not all the references were removed/adjusted.

Garbage collection seems unnecessary since the garbage requires little memory but garbage collection costs CPU cycles.