Joe Biden is the way he is because he is 81… actually no. He is the way he is because he probably has onset dementia. My nan is in her 90’s, she is still a fierce and sharp woman. I wouldn’t put her in charge of the country but I bet she could out debate Biden. I don’t like how the sub is become a pseudo politics sub. Sure Biden has a stutter. That isn’t his problem. His problem is that he loses his chain of thought and gets confused. That is not stuttering. That is a cognitive deficit caused by old age. Will you be like this when you are 80? It depends, how sharp are your grand parents? That may hint at your future cognitive abilities. You could also help to stave it off. Stay mentally active, stay physically active etc.