seems more of a joke tbh. I remember seeing a site where you can set it to send an email to yourself some time in the future (you choose) and then you can open and read it in say 20 years time and be all like WOAH! I DON'T REMEMBER THAT!!! DUUUDE!!
Never be the cocky one who thinks they'll never get killed. they always die eventually.
Also never get killed... I think that one is straight forward enough!