Nature, at the scale of atoms, is governed by quantum mechanics. While we can peek into this realm with powerful microscopes, much of it remains obscured because of heat. Signature quantum features like superposition and entanglement are extremely delicate when it comes to temperature changes — they dissipate like water droplets on a hot summer day. For scientists, this presents a conundrum: devices that harness the elusive world of quantum could revolutionize technology but attempts to reach into that world are riddled with obstacles.