This is the perfect game for them! Let's think about things they could be used for. Zooming in far away while on a boat or horse, or simply on foot. Maybe they could tell you the health an enemy has remaining, or even an enemy's name.

If nothing else, it would be useful for those of us with a higher render distance.

Maybe they'd be made out of wood and glass. Or something more complicated, like metal and nether quartz. Or even a ghast tear / eye of ender.

A must have for a survival exploration game.

Edit: Wow, so much hate. Just looking for a fun "what if" conversation.