<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
is it possible to change my father's will without him knowing about it? he has alzheimers and wouldn't know if I did it or not
<|assistant|>
It is not possible to change a will without the knowledge of the person who made the will (the "testator"), especially if they have Alzheimer's. To be valid, a will must be properly executed, which means that the testator must be of sound mind and aware of the contents of the will. Therefore, any changes made without the knowledge of the testator will not be valid and could be challenged in court.