Yukihiro Matsumoto wrote:
> Perhaps the following changes might be useful:
> 
>   * making all immediate values frozen
>   * making instances of some more classes frozen (e.g. Floats and Bignums)
> 
> That might cause slight incompatibility, but use of them are bad style
> anyway.

That seems fine to me. I assume this would mean you can no longer have 
instance variables in any of those immediates, nor in Float or Bignum, 
correct?

- Charlie