Ukrainian President Volodymyr Zelensky emphasized that the war in Ukraine is not a “stalemate” in a comment to the media about Ukrainian Commander-in-Chief General Valerii Zaluzhnyi’s essay on the positional nature of warfare in Ukraine. Zaluzhny’s long essay, “Modern Positional Warfare and How to Win It,” outlines Zaluzhnyi’s consideration of the changes Ukraine must make to overcome the current “positional” stage of the war more clearly than the shorter op-ed and Economist article it accompanied.
I really got a laugh out of Zaluzhny’s idea for thermal tunnel boring machines. Obviously a game-changer!
Petra's remarkable thermal bore cuts through undrillable rock By Loz Blain January 06, 2022
San Francisco startup Petra says its new contactless thermal drilling robot can make steady progress through the hardest rock on Earth – stuff that would normally destroy drilling equipment – so quickly and cheaply that it could make a lot of underground infrastructure projects economically feasible.
The semi-autonomous "Swifty" robotic system can create 18-60 inch (46-152 cm) diameter tunnels through any geology, blasting the rock with an extremely hot, high-pressure spallation head such that it glows, chars and flings away.
Petra, founded by serial entrepreneur Kim Abrams, says it's demonstrated the robot's capabilities by boring a 24-inch tunnel through 20 feet of Sioux Quartzite – which Abrams describes in a CNBC interview as "the hardest rock on earth ... harder than bluestone granite ... the type of rock that would normally have to be dynamited." Swifty progressed at a rate of an inch a minute.
The company says this new robot uses a combination of remote control and machine vision to get its job done, and it's the first microtunneling robot that can reverse out of its own tunnel.
Costing "30-90 percent less than conventional trenchless methods," and opening up access to previously undrillable areas, Petra says its new tech will make it much more economically viable for governments and utilities to run vital power and communications cables underground, where they're safe from vandalism, wildfires, high winds and other threats.
yeah, i'm sure he is laughing too.......at you.
"Russia sucks." ---- Me, US Army (retired) 12B & 51B
Russian Admiral said, after the Moskva sank, "we have the world's worst navy but we aren't as bad as our army".
Obviously a game-changer! 
