
In answer your very valid question about his attention span lasting long enough to read 280 characters, I'd say no it doesn't.
The man is a buffoon, although I do like the 'dotard' description too.
But I'm struggling to see how adding another 140 characters can halve the time it takes to trigger nuclear Armageddon.
Surely (don't call me that) adding more characters will delay the pushing of the Big Red Button as the imbecile will almost certainly fry his brain by trying to comprehend such a lengthy string.