• “It does not make sense to talk about software aging!”
– Software is a mathematical product, mathematics does not decay with time.
– If a theorem was correct 200 years ago, it will be correct tomorrow.
– If a program is correct today, it will be correct 100 years from now.
– If a program is wrong 100 years from now, it must have been wrong when it was written.
• All of the above statements are true, but not really relevant.