It's a known issue. I guess it could be avoided if some kind of 
trampolining scheme was introduced instead of the current recursive one in 
LazySeq.java.

On Saturday, March 2, 2013 8:38:24 PM UTC+1, Ben wrote:
>
> Try it and see: 
>
> (reduce (fn [acc _] (concat acc acc)) '() (range 1750)) 
>
> blows up with a stack overflow error. Changing the inner expression to 
> (doall (concat acc acc)) avoids the issue, but (obviously) also 
> requires giving up laziness. 
>
> This is admittedly fairly insanely nested, but I would have expected it to 
> work. 
>
> -- 
> Ben Wolfson 
> "Human kind has used its intelligence to vary the flavour of drinks, 
> which may be sweet, aromatic, fermented or spirit-based. ... Family 
> and social life also offer numerous other occasions to consume drinks 
> for pleasure." [Larousse, "Drink" entry] 
>

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