Steve Caplin delves into the world of tech, with ChatGPT withdrawing a voice Scarlett Johansson claims is too much like hers and tech companies agreeing not to develop AI that poses an "intolerable risk to humanity". German scientists are developing on-demand cabs to travel on disused railway lines. Apple's new accessibiity features are impressive. Chinese scientists are improving transparent wood to be flame retardant and "superhydrophobic". L'Oréal is crowdfunding a hair colouring device. The NHS is using drones to carry blood samples. And the Police might not have thought through their new solution to eBike mugging properly.