Would it be useful if a future-telling machine was ever invented??
Because, it would just show the future, i.e, if it shows one is going to die tomorrow, from an accident for instance, he would have to live one day in grief, for if he tries to save himself from that cause, here by staying indoors, then that machine would prove ineffective, and if he does die like that, then he had to live 1 day in grief. So, the machine would not be useful as such, but still, you would know the future.
Comment on this paradox...make it clearer if you can.
Thanks