Pardon my top posting, but I addressed these points in Ruby-Talk:226309.
        Hugh
On Sat, 25 Nov 2006, Paul Lutus wrote:

> Hugh Sasse wrote:
> > 
> > This doesn't mean that is is undesirable that Ruby do more.
> 
> At the expense of runtime speed. Every added hand-holding feature in effect
> at runtime decreases runtime speed.
> 
> > This is shifting the burden from the developers of ruby
> > to the many users of it.
> 
> Your suggestion shifts the burden from developers of Ruby code to the end
> users of Ruby programs, who would have to put up with time-costly error
> detection features running in the background meant to detect and describe
> runtime errors that ought to have been caught during the design phase.
> 
> IMHO this entire class of problem is better dealt with by better design and
> better testing, not more loquacious error messages during runtime.
>