Sailplane CEO @sramji reveals why a $10B AI data center may need another $2B of hardware sitting in reserve just to stay online: "NVIDIA has built these data centers in a rack. These racks are called the NVL72, and they're Jensen's dream child. It's called 72 because it's got 72 Blackwell GPUs. They're about seven feet tall. They weigh three and a half thousand pounds. They take gallons of coolant. They've got 1,296 simultaneous cable connections so that NVIDIA's NVLink will light the whole…