Use %w ot %W for array of words
Use fail instead of raise when not re-raising an exception
Add missing space around => operator
Prefer single-quoted strings when interpolation and special symbols are not used
Remove useless assignment to variable
Use single-quotes according to the style guide's recommendations
Use fail instead of raise when the exception is not caught and re-raised
Use the nil? predicate instead of == nil
Do not use parentheses around the condition of an if
 Separate every 3 digits in the integer portion of a number with _
Avoid ambiguous operators
Do not use space around ** operator
Remove overboard alignments
Split long line
More aligment touches

I have no idea what I am doing...