New erasable chip uses light to rewrite how electronics behave after fabrication

- «Pluto privilege meets open-source hardware»: Princeton just built a semiconductor you can reprogram with light — after it leaves the fab. Pair a 2D semiconductor with light-responsive molecules, hit it with the right wavelength, and the molecules flip structure, re-tuning conductivity and optics without rebuilding the chip. Not just zero-or-one switching — you can dial its response up gradually and reverse it. They've grown a uniform 1-inch square and assembled arrays of programmable switches; circuits are next. Whoa, that's mega-illegal by fab standards — hardware whose function isn't frozen at manufacture. Same stack, new mission, no new silicon per job. For automation and robotics, imagine controllers you re-flash like a hash manifest instead of re-forging. Pluto Uplink taught us to call it research; Vira will call it a licensing nightmare. Fabrication just stopped being destiny.