3 ms·

Before I quit The Daily WTF, the joke answer to your question would be "because it's resilient against someone changing the value of 3."

• auxbuss 14y ago
  Which could, of course, be avoided by: > 3.frozen? => false > 3.freeze => 3 > 3.frozen? => true Just in case, I'd better add: :)
• jlgreco 14y ago
  Well that makes sense. This is common practice in embedded systems without a filesystem. ;)