just some personal experience: While i don't doubt it's true, GHC and it's GC are so optimised for this scenario that (compared to for example java) i don't not

just some personal experience: While i don't doubt it's true, GHC and it's GC are so optimised for this scenario that (compared to for example java) i don't notice much of a slowdown. Also haskells different execution-model comes into play. You don't really iterate much over lists, but instead execute "specific code blocks".