So, is there any reason to think it doesn't mean that literally?As far as Rev 20:10, it certainly says he will be tormented day and night forever.
Who knows? The text from Gen 3:14 isn't clear about that, but I think Rev 20:10 is quite clear about him being tormented forever once he has cast into the LOF.With that in mind then, all the days of thy life could be meaning up until the time he is cast into the LOF, which then doesn't require that he ever has to physically die. That's one way to look at it anyway. But I wouldn't think eating dust all the days of his life would be continued in the LOF tho.