With a sound like a sigh, the grain of sand vanished.

“Three hundred megawatt-hours. Same as powering a suburb for a day.”

“Worth it?”

The technician almost smiled. “Depends. Do you need a phone, or a beach?”

“The energy cost?” she asked.

The machine hummed not with energy, but with absence. A low, gravitational thrum that made your molars ache.

Silicon and oxygen (sand) had been unbound, then rebound into element 49.

Outside the lab, the sky was a chemical orange. The last natural sand mines had closed a decade ago. Now, cities paid to unmake their own ruins—concrete repacked into lithium, asphalt into cobalt. A recycling loop so tight it squeezed atoms into new skins.