# [Chicago] PyPy

Tal Liron tal.liron at threecrickets.com
Tue Jul 26 18:08:05 CEST 2011

```Thank you everybody for your help in understanding the benefits of PyPy. :p

On Tue, Jul 26, 2011 at 10:35 AM, Joshua Herman <zitterbewegung at gmail.com>wrote:

> True, and the people who want to understand my analogy are smaller still...
>
> On Tue, Jul 26, 2011 at 10:31 AM, Eric Stein <toba at des.truct.org> wrote:
> > The set of people who understand how your analogy relates to PyPy is
> > provably finite.
> >
> > Eric
> >
> > On 07/26/2011 09:45 AM, Joshua Herman wrote:
> >> Let us call a set "abnormal" if it is a member of itself, and "normal"
> >> otherwise. For example, take the set of all members of ChiPy. That set
> >> is not itself a member of ChiPy, and therefore is not a member of the
> >> set of all members of ChiPy. So it is "normal". On the other hand, if
> >> we take the complementary set that contains all non-members of ChiPy,
> >> that set is itself not a member of ChiPy and so should be one of its
> >> own members. It is "abnormal".
> >>
> >> Now we consider the set of all normal sets, R. Attempting to determine
> >> whether R is normal or abnormal is impossible: If R were a normal set,
> >> it would be contained in the set of normal sets (itself), and
> >> therefore be abnormal; and if it were abnormal, it would not be
> >> contained in the set of normal sets (itself), and therefore be normal.
> >> This leads to the conclusion that R is neither normal nor abnormal:
> >> Russell's paradox.
> >> _______________________________________________
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> >> http://mail.python.org/mailman/listinfo/chicago
> >
> > _______________________________________________
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> > http://mail.python.org/mailman/listinfo/chicago
> >
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>
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