 In addition to ‘brain-in-a-vat-in-the-image’, Putnam suggests (1981 [1999: 36]) two other possible sorts of things that ‘brain in a vat’ might refer to for a BIV. It might also refer to (ii) the electronic impulses that cause experiences as of being a BIV or perhaps to (iii) features of the computer program that cause those electronic impulses. I will use the expressions ‘brain* in a vat*’ and ‘BIV*’ to provide a schematic representation of whichever of these three possible meanings of ‘BIV’ in vat-English is correct, or if none is correct, ‘brain* in a vat*’ and ‘BIV*’ represent the meaning of ‘BIV’ in vat-English, whatever it is.