‘Still, Fenwick’s right,’ said Ford. ‘That’s all well and good if you’ve got an ape on your operating-table and you can tinker around in its head. But the jelly must have entered through the ears or the jaw, and for that it would have to change shape. Even if you managed to get the stuff inside the brain, how could you be sure that it would redistribute itself correctly and then, um, press the right buttons?’