Las Vegas' dystopia-sphere, powered by 150 Nvidia GPUs and drawing up to 28,000,000 watts, is both a testament to the hubris of humanity and an admittedly impressive technical feat

Based on the spec sheet about 1.6% would be powering the GPUs at full power, I'd be willing to double that for their cooling (though that's a fairly liberal estimate). Where is all the other power going, is it powering the screen itself?