That's a good point. This might be a better example: irb(main):009:0> String === String => false irb(main):010:0> Integer === Integer => false

That's a good point. This might be a better example: irb(main):009:0> String === String => false irb(main):010:0> Integer === Integer => false irb(main):011:0> Class === Integer => true irb(main):012:0> Class === String => true