The author's in-laws, bev and lois, are sleeping under a heated blanket with dual controls. when either person is too hot or cold, he or she wakes up and adjusts his or her control. is equilibrium possible? that is, can there be any setting of the two controls that make both people comfortable? now suppose (as actually occurred) the controls are crossed so that each person is controlling heat for the other. what happens if lois feels the need for more heat and adjusts her control? draw the situation as a set of linked boxes and explain how the process happens in terms of feedback loops. would you describe this as a positive or negative feedback loop?