MonkeeSage wrote:
> I think it's safe to say that it can (and does) bite everyone, since
> the designer of the language says: "Laziness makes it much, much
> harder to reason about performance, especially space." (SPJ, op. cit.)

The same could be said for many lower-level language features that are 
"standard equipment" -- mark and sweep garbage collectors, 
meta-programming, and even the "while" loop. :)