Cordelia and the Fool

Running across a claim in a book
That the same boy actor played both roles
In the original production

Why bother to find out if it’s true?
Just savor the juxtaposition.
Never mind the challenge to play them

Both, in alternating scenes. Better,
Imagine an actual person
Who combined Cordelia and the Fool.

Better yet, given their loyalty,
Affection, and honesty, as mad
In their own way as old Lear himself,

Imagine they were the same person
In a version of the tragedy
In which Cordelia, undercover

As the Fool, is able to keep close
To her more foolish, tyrant father.
How does that change those scenes with the Fool?