My father died when I was 4 years old, so I can't really say anything about his hearing.
“You'll never be disappointed if you always keep an eye on uncharted territory, where you'll be challenged and growing and having fun.”
“Simplicity is not the absence of clutter, that's a consequence of simplicity. Simplicity is somehow essentially describing the purpose and place of an object and product. The absence of clutter is just a clutter-free product. That's not simple.”