Sorry, maybe i'm just not thinking clearly this late at night. Why in the world is supporting eval related to hanging on to 500 megs of unused memory? Ruby is

Sorry, maybe i'm just not thinking clearly this late at night. Why in the world is supporting eval related to hanging on to 500 megs of unused memory? Ruby is neat and all, but is there really anything in ruby that's not dressed up smalltalk? Squeak doesn't randomly hang on to 500m, afaik.