Why Joe Biden Had To Use The E-Pen

Well....I was curious about this and asked Grok (Twitter-AI): 

"People with Alzheimer's disease may retain the ability to sign their name in the early stages, as this is often a deeply ingrained, automatic motor skill. However, as the disease progresses, cognitive and motor impairments can make signing difficult or inconsistent. In mild stages, they might still sign legibly, though they may struggle with understanding the purpose of signing. In moderate to severe stages, fine motor skills, memory, and recognition of their own name can deteriorate, potentially making signing impossible or resulting in irregular, unrecognizable signatures."

So I imagine early on....maybe in the first four weeks....his signature was 'crap' and if it got out....people would ask what's wrong with Joe's signature?

The comical side of this?  There's probably nothing in the four-year period that he personally signed....so the value of any document...is zero.