comment: >
  
  0.999... (infinite nines) and 1 are equal. They are two representations of the same number, like 0.5 and 1/2 (one half) are.
context: This is a friendly reminder to read our rules.
  Remember, /r/Showerthoughts is for showerthoughts, not "thoughts had in the shower!"
  (For an explanation of what a "showerthought" is, please read this page.)
  Rule-breaking posts may result in bans. >
  
  Argentina produced the first animated feature film ever. Not Disney. >
  
  Careful. If word gets out, Disney might nuke Argentina. >
  
  An audio recording of a lock being opened provides enough data to reproduce the key required to open that lock, even with a cell phone's microphone. >
  
  I'll bite:
  Would love if you could share a source explaining more about how this is done in practice? And is it only under lab conditions, or has there been a practical exploit?
  I understand how this might work in concept -- say a standard 6-pin house key -- but there must be some pretty specific conditions for it to work, even in a lab.
  (e.x. Background noise, machining tolerances of the lock, etc. etc.) >
  
  Neat! Thanks. It isn't often someone on Reddit can cite a properly wonkish PDF of their claims. Thanks for sharing.
  
  For lurkers who want the TL;DR, here is the Conclusion of the paper [emphasis added].
  
  7 CONCLUSION
  We present SpiKey, a novel attack that infers the keycode or secret of a physical key by utilizing only a smartphone microphone to capture the time difference between inherent click sounds produced when the victim inserts the key into the lock.
  SpiKey inherently provides many advantages over lock picking attacks, including lowering attacker effort to enable a layperson to launch an attack without raising suspicion. 
  We evaluate SpiKey with a proof-of-concept simulation, based on real-world acoustic data, and demonstrate that SpiKey can reduce the search space from a pool of more than 330 thousand keys to just three candidate keys for the most frequent case. >
  
  The day used to be several hours long way back when.
  Momentum transfer slowed us down after something bumped into us and the Moon got spat out. >
  
  You're not here for any specific reason, you have to choose your purpose in life. >
  
  Objection,your honour! Speculative.