From: URABE Shyouhei Date: 2006-09-05T00:14:24+09:00 Subject: Re: Literal inconsistency Hi, Calamitas wrote: > Well, immutable is relative: The term "immutable" is not clearly defined in Ruby. You may surprise to know that even nil can be modified. a = nil def a.foo p self end a.foo # => nil Matz once wrote to me there are no "strictly" immutable objects.