I understand and am going through near-exactly what you are going through. It is very rough. The constant lies fabricated and thought up on the spot to avoid admission of being responsible for anything at all - it's never his fault. The 5-second memory, the degradation of the mind to being a child with bouts of tantrums and pouting. The equally slow and fast disappearance of the him that he was before, to where I've already had to grieve for his death while he's still technically here. It's more like someone who had never met him trying to do a bad impersonation of him after I describe what he was like...but instead doing a constantly angry, always lying, fully self-centered impersonation. On top is the lack of any appreciation for anything I've done to help, which required my violating many of my principles to help him, and doing things that I think are far beyond what any son should have to do for his father. The complete and total lack of respect for me, where I've been and the things I've done in my life, the knowledge I've gained and the wisdom and insight I've come to possess, or for my discoveries and creations. The near total abandonment of him by my other siblings. Oh, they would visit him while he was in the hospital and they thought he might die, but once he was out they wanted nothing to do with helping to care for him 24 hours a day for months, or even be bothered to take him for a single appointment for a scan, or help with anything at all...no visiting, not even calls to him to ask how he's doing let alone call me to ask me how he's doing, or how I'm doing as if that would ever happen. Right now the most persistent reminder of his decline is the constant lying, the mumbling and grumbling, the sudden and constant swearing from a man who almost never swore, coupled with the self-absorbed attitude where everything is all about him and his wants. I did sign up for it as well. I made a choice 16 years ago to not end my life so that I would be here for him and my mother; to help them and to protect them from the times that I knew were coming. Both would be dead right now if I were not here to help and save them since my other siblings abandoned them and are all wrapped up in their own lives. However, I anticipated those times to come back around 2013-14, but jews held off until ~2020 before they really ramped it up. They have not let up in their agenda and the worst is coming, and quite soon considering the rhetoric and choices of words their puppets have been using.