Thanks in some part to Asterix comics portrayal of Caesar as a gambler, I always took this phrase to mean just that. There is a sense of irrevocable commitment

Thanks in some part to Asterix comics portrayal of Caesar as a gambler, I always took this phrase to mean just that. There is a sense of irrevocable commitment that it implies, because once the dice have left the shooter's hand, no adjustment to bets are allowed. Your fate is sealed. Only upon puzzling upon your comment did I realize that there was another way to creatively misconstrue those words in english, reading "die" as mould, and "cast" as to form on such a device. Therefore, "the die is cast" = "the mould has been poured". Once it hardens, again, your fate is sealed.