Peter Zotov already suggested the way to go.

Via pp. pretty print.

  require 'pp'
  pp hash


> This doesn't really change much in my opinion because
> the values are so big.

If your hash is really huge, I would randomly select only a subset of 
these and pretty print them.

And also use Wirble if you do this in IRB, it really is colouring 
nicely.

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