If you think there is only one tool; you're probably the tool.
Lots of wisdom in this short statement. Well put.
In this case there can be one tool...If you can use it proficiently close and far. Isn't that why they make 3x18, 4x16, 5x25, etc, etc.
Nothing above implies that one tool cannot cover your needs. Just says that there's more than one way to get the job done. Dialing the scope is certainly fine and sometimes seems best. A set mutidot reticle can also do fine for many things. So, there IS more than one tool available. "My way is the only way" is the mantra of the mental midget. I think the OP was just trolling for a response. Guess it worked.
