To be honest, this is not the only such case. Eve Online folks migrated part of their system from SBCL to Erlang for seemingly the same reasons [http://lambda-the-ultimate.org/node/2102].
Having said that, it is still not a language issue, since we have systems such as Termite/Gambit Scheme [http://toute.ca].
You don't get to pick and choose implementations to compare. Mzscheme was probably chosen because it's a pretty well known scheme implementation and seems popular... likely because it's well done in many ways. But you have to take the bad with the good.
Re:Lisp as Blub
by dpapathanasiou on Monday April 14, 2008 @06:17PM
(#163547)
Maybe the problem is Arc's lack of tensile strength.
But, you're confusing the actual application with the Lisp implementation. Arc (and Mzscheme for that matter) are not as mature as Erlang's 20 years (or whatever). If this was running on a more mature Lisp system, I don't think we'd be discussing the same thing.