Simple math. If you're scared half to death the first time you have 1 / 2 your life left. Which is 2 / 4 left. SO..if you get scared half to death again technically you will have ONE -fourth of your original life left !!!! Since 1 / 2 of 2 / 4 is ONE FOURTH. So theoretically you can get scared 1 / 2 to death incrementally indefinitely.
Damn you're good.
You become extinct !
Then you spontaneously combust.
Then you've just been scared to death ooooo