Living forever
Longevity, long life and not aging. (In the absence of external life and death), immortality (immortality) and eternal life (in the absence of external life), immortality (in the absence of external conditions, Safe without external conditions will survive forever without death). Lighthouse jellyfish is now known to not be aging creatures. If you can keep it constant, it is possible to "live forever", but now observe the world everything, whether life or no reason, no one is always changing. ...