English Audio Request

All that would be necessary, if the animal experiments are right, would be to re-evoke it - perhaps by revisiting the scene - and then inject some biochemical blocker and it would be gone for good. So enthusiastic have some advocates become that even the US President's Bioethics Council has been obliged to consider the possibility.
In Kaufman's film, Lacuna Inc technicians perform the erasure by placing an imaging helmet on the potential erasee's head, locating the site at which the memory is stored, and then zapping it with some type of focused energy source. There are indeed techniques of transcranial brain stimulation being developed, largely funded by the US military, in which focused pulsed magnetic fields are directed at specific brain regions and which temporarily disrupt mental processes. These might serve Lacuna Inc's purposes, but are unlikely to be effective if only because in practice there are unlikely to be specific "sites" for specific memories - rather they are stored, if at all, in the form of distributed networks of synapses. In the film, the attempt at erasure runs into difficulties because other memories get entangled with those they are aiming at, and this is likely to be the consequence of any such attempt based on disrupting the brain's electrical communication systems. This is why the PTSD snake oil salespeople are thinking chemically, of a drug that disrupts neurotransmission across a wide region of the brain.