Jose Mario Quintana wrote:
> 
> [...], there is a way to write fully fixable recursive code in J; see
> http://rosettacode.org/wiki/Y_combinator#J . 
> The method implies heavy overhead and it is typically relatively
> slow;[...]
> 
Not typically but intrinsically slow because interpreter first has to
tokenize
expressions before it can parse them every time apply is applied. 
Furthermore:


> [...]but adverbial programming [...] is not about efficiency
> 
I disagree: the use of tacit adverbs, in contradistinction to the use of
apply, 
can make code run faster.

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