From: Aldric Giacomoni <aldric@...>
Date: 2009-09-25T23:09:57+09:00
Subject: Re: Roulette & rand

Symbols are a good habit to get into because they always represent a 
unique object, the symbol, while strings always create a new object.
irb(main):009:0> 0.object_id
=> 1
irb(main):010:0> 0.object_id
=> 1
irb(main):011:0> "0".object_id
=> 21396750
irb(main):012:0> "0".object_id
=> 21393440

If we're gonna talk about code simplification..

colors = { 0 => :green }
(1..36).each { |num| colors[num] = (num % 2 == 0) ? :black : :red }

But I'm also lazy, and this is actually slower than the way you guys 
generate your hash...
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