Mortar and pestle

A mortar and pestle is a tool used to crush, grind, and mix solid substances (trituration). The pestle is a heavy bat-shaped object, the end of which is used for crushing and grinding. The mortar is a bowl, typically made of hard wood, marble, clay, or stone. The substance to be ground is placed in the mortar and ground, crushed or mixed with the pestle.

can we imagine what is the point using mortar and pestle in 50 years from now?

For weapon : if someone trying to rob you, what you can do with mortar and pestle is ; cover their face using Mortar and knock their head with pestle at the same time scream out loud to alert people calling for help

For sound :  if you want to mind other people's business over a thick wall, place your ear on the mortar which is placed against the wall,and use the pestle to knock slowly on the mortar  for clearer sound.

For Diet : roll the pestle on our stomach for 20 minutes and the sweat will come out from the body and place the pestle in the mortar, the residule will be the quantity of the fat that burned.