Robots don’t bleed and neither do drones or smart weapons. So this old way of calculating reminds me of when machine guns were first encountered. It didn’t matter how many guys on horses you had, they were going to die. The Russian blood barrel is not as deep as you think because you need qualified WILLING young men, not old drunks or confused criminals to make a difference. Modern warfare is won with brains, not bodies. Russia will lose everything, including its standing in History.