The expression "Killing two birds with one stone" sounds trite and cruel to me. It implies that killing one bird is not enough and that the stone must continue on its way to kill another. Without a doubt, the expression simply means solving two tasks at the same time or with one single action. But again, it doesn't seem kind to me.

When was the last time you thought about killing a bird, especially using a stone?

My memory takes me back to childhood when children killed birds, but not only. The children also killed other animals, such as ants and beetles in the grass. None of these creatures posed a threat to the children's lives. However, the children saw themselves as superior to these creatures, and they were killing them.

Nowadays, many children may not have the opportunity to interact with nature as they did in the past, and therefore may not engage in such activities, such as killing birds, ants, beetles, butterflies... However, the desire to kill may still exist. Nowadays, children find it easier and more enjoyable to kill aliens, dragons, and zombies in video games – one click, two dragons! Double the number of kills! Two for the price of one!

But, the question remains: why do children (human beings) have the desire to kill?

This is a difficult question to answer. Perhaps children kill because it is a way for them to communicate with the world and make a place for themselves in it by force. Who knows!

However, I don't know if it is possible literally to "kill two birds with one stone", but I do know that one can kill way more "birds" with a hand grenade, and even more with drones, rockets, and other similar weapons.

The history of the twentieth century is a clear testimony: Millions of people were killed with weapons of mass destruction...