Related:

• What is the difference between a Turing machine and the modern computer?
  It's the same as that between Hillary's ascent of Everest and the establishment of a Hilton on its peak....
• Q: What is the difference between a duck? A: One leg is both the same.
• The difference between like and love is the same as the difference between a spit and a swallow.
• One difference between a man and a machine is that a machine is quiet when well oiled.