ALCOR Life Extension believes they can use cryonics, big metal containers, and liquid nitrogen to preserve your body after death to be brought back later.
Max More, the president and CEO of ALCOR believes this could give people an indefinite lifespan. More believes death is just another status for the human body, and another step for life.
ALCOR takes in bodies shortly after death and doesn't necessarily freeze them, but rather "super cools" them at -320 degrees Fahrenheit.
According to More, the technology is already in use by fertility specialists so he's basically taking the "who's to say we can't" approach.
We can only hope we're all dead and gone when the inevitable cryogenic zombie apocalypse happens.