"the extended mind" has been met with criticism from scholars challenging extended cognition. the claim is that clark's theories lack a differentiation of biological memory and external storage of thought. this is mainly addressed to the cognitive comparison between otto and inga, and how their thought processes are viewed as equal an engagement of extended thought given otto's condition. when he uses his notepad, it is necessary reliance, as these records will help him to remember his thoughts. however, there is an argument questioning if this follows clark's description of extended cognition as it requires a running cycle of cognitive connectivity that returns to the body.