How do you know whether dying people think through the counterfactuals? Of all the people I can think of, my future self would absolutely be on the short list

How do you know whether dying people think through the counterfactuals? Of all the people I can think of, my future self would absolutely be on the short list for who I would like advice from. My older self can definitely advice my younger self to not work so much and so hard, without meaning that I should "relentlessly prioritize relationships". (Edit: I already prioritize relationships, but not relentlessly) In my eyes, this is nothing controversial at all. In this thread I am surprised that the concept of "deathbed advice" provokes so many people.