a very valid way to become immortal is to change yourself into something which is easy to make immortal. You just lose everything about yourself that death would have taken.
Death takes more from someone who hasn't changed themselves, at least partially, into something that can survive past it.
A vigilante is just a man lost in the scramble for his own gratification. He can be destroyed, or locked up. But if you make yourself more than just a man, if you devote yourself to an ideal, and if they can't stop you, then you become something else entirely...A legend, Mr. Wayne.
Did you think to kill me? There's no flesh and blood within this cloak to kill. There is only an idea. And ideas are bulletproof.
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.