Teeter Totter

Does not include figures.     It Takes 2 to make this work.  A situation characterized by rapid, repeated changes from one state or condition to another. ‘The emotional see-saw of her life so far, with its successes and failures, knows few limits.’ ‘The intellectual see-saw continues as we're carefully guided through an ethical minefield of technologies.’ Meaning "move unsteadily, be on the edge of imbalance" is from 1844. Noun teeter-totter "see-saw" is attested from 1871 (earlier simply teeter, 1855, and titter-totter in same sense is from 1520s). Totter (n.) "board swing" is recorded from late 14c.; see totter (v.), and compare see-saw.