Overclocking is like that redline on the tacho in your car.
You 'can' get your car's engine to 'exist' on the wrong side of that redline.....but it will be a shorter life than if you had stayed on the correct side.
No amount of tech-savy BS from any engineer can refute that.
As with the most powerful Formula One engines built, sure you could get 1200hp from 1500cc .....but only for two or three laps.....a sort of 5 minute controlled detonation. [Brabham BMW qualifying engine].
Needless to say, the engine capable of surviving the full race length was limited to around 900hp.
Neither would get you and your kids to Aunt Mabel's each Xmas for dinner....the engine would be dead well before your Aunt Mabel.
Souping up your CPU is guaranteed to shorten its life......which is tenuous at best as it is....just wait for the standard fan to fail and see what ensues.....but relying on insane cooling processes to handle the added stress just means that when it goes bad you'll just be witnessing a more pyrotechnic melt-down than normal.
As clever as looking down the barrel of a gun, pulling the trigger and remarking....'wow, you really CAN see the bullet coming.....'....