My 40 year old husband was diagnosed with stage 4 bowel cancer and was told it is incurable. What does that mean? He is halfway through chemotherapy (cycle 7 of 12) and has a possible HIPEC surgery ahead after a break when the chemo finishes. He’s responded well to chemo with tumors significantly reducing in size but the doctor said it’s still incurable. What does that mean? How long does he have to live? Is he basically dying?