On Sat, 20 Aug 2005, Michael Sperber wrote:

> Andre van Tonder <xxxxxx@now.het.brown.edu> writes:
>
>> I think the cost is worth it.  It is a one-time burden on the implementor that
>> gives significant (in my experience) convenience to users in perpetuity.  The
>> cost is bounded but the savings over all user programs is potentially infinite.
>
> The same could be said for the opposite direction :-)

Ah yes, I forgot that this is Scheme, where the number of user programs is
bounded while the number of implementations tends to infinity ;-)