Teeter-totters, salad tongs, and bottle openers are all levers, meaning that a downward force exerted on one end can be transferred and increased in an upward direction at the other end, allowing a small force to lift a heavy weight.
The responsibility for the well-being and success of the social order was shifting from gods to people, a power shift that will seesaw throughout human history until...um, probably forever actually.
He could remember his old man taking him to the park in Berlin when he had been Danny's age, and he had done the whole bit — slide, swings, teeter-totters, everything.
The population would be in a constant see-saw towards one sex or the other until, finally, a mutation arises that results in an equal ratio of offspring.
But when someone is experiencing nonduality, the seesaw relationship between the two networks weakens, and the brain is able to hold both perspectives at once.