Why has God allowed me to become a sinner like you again?
It seems now I know the answer:
Sometimes a computer stop to do some useless calculations only when they overflow its entire memory. It may be an attempt to solve a problem not solvable in principle or a problem which would take say 10^100 years even for a powerful computer.
I would spend more time with the computer brain trying to solve it, than I spent being a sinner.
God wants us to solve our problems faster. So He in fact helped me.