If you've played Diablo 2 you most likely already know what this is.. (I'm sure you could name it somthing different other then "Hardcore")
But if you're not it basically means if you die, you are officially Dead, no coming back from the dead, nothing. (MAYBE you could revive them if you got there in time to use your reviving spell, or they were wearing a Life Saving Amulet?
Although I thought if it would work like that your character could level 50% faster or something of the sort..
I'm sure this won't happen even later then beta, and I don't even think it's a great idea, I just thought I'd bring up the idea b4 anyone else lol