All of the skeptical comments I've read here are talking about how ICE are already obsolete, since electric cars are cleaner, quieter, and simpler. I'm picturin

All of the skeptical comments I've read here are talking about how ICE are already obsolete, since electric cars are cleaner, quieter, and simpler. I'm picturing this engine being used in other applications (even though the website, and the journal the engine is publushed in, are automotive). Stationary generators and marine drivetrains come to mind. Those are less sensitive to the greater size and weight that this engine might have, and they benefit greatly from the ability to load fuel, store it, burn it as needed, and be refueled at any time, even while running. As an example, my local university's datacenter has two rooms full of batteries for power backup. They instantly switch on, but can only power the datacenter for a short time. To protect against extended blackouts, there are two redundant diesel generators in the sub-basement, and enough fuel to run the datacenter for several months. Battery technology seems to have a ways to go before it'll be worthwhile to just have a basement full of batteries as long-term backup power. People with those sorts of use cases are probably going to be relying on ICEs for a long time to come. In the meanwhile, efficiency improvements can make them less harmful to own and operate. And even after 150 years of developing ICEs, engineers are still coming up with ideas, maybe even practical ones, to gain those improvements.