Harsh Darkness Gamerule

With the new upcoming 1.17 Cave Update, there is one feature that could make caves (and night) extra spooky.

The name would be something along the lines of Darker Darkness, Advanced Darkness, Hardcore Darkness, etc. Yes, it would be exactly the same as the Hardcore Darkness mod, which does not limit the darkness level

Instead of a completely dark room being slightly visible, it would be pitch black, literally impossible to see past the light of the torch you just placed. There could be a zombie or a creeper there, and you wouldn't know. Unless you pack night vision potions, you'll never know what's around the corner.

So, this could be a setting in the Graphics settings menu, but I think it'd be best for it to be an entire Gamerule, so nobody is cheating by having their brightness set to max. Of course, this would be off by default.

Why should this be added? Enhances the creepy ambiance of caves, that's it. Makes exploring caves more atmospheric, and more challenging.