Walter is right about transitive readonly - here's the alternative

[Janice Caron]

On 9/13/07, Christopher Wright <dhasenan at gmail.com> wrote:
> Janice Caron wrote something brilliant:

<grins>

>  - A function that doesn't change anything that anyone can see need not
> be threadsafe

This is really the biggie...

If thread safety is a language goal then /everything/ must be
threadsafe, period. No exceptions. None. I think that's what Walter's
aiming at.