LangWart: Method congestion from mutate multiplicty

[Neil Hodgson]

Rick Johnson:

> The Ruby language attempted to save the programmer from the scourge of obtaining a four year degree in linguistics just to create intuitive identifiers "on-the-fly", and they tried to remove this ambiguity by employing "post-fix-punctuation" of the exclamation mark as a visual cue for in-place modification of the object:

    Ruby does not use '!' to indicate in-place modification:
http://dablog.rubypal.com/2007/8/15/bang-methods-or-danger-will-rubyist

    Neil