so for example your sunglasses you don't have to wear them all the time
when you're indoors when it's not sunny of course you would take them off and
instead of holding them in your hand and putting them in your shirt pocket the
eyeglass chains in eyeglass cords would allow you to hang them off your neck so
those were never designed to prevent eyeglasses from slipping and yet they have
become a solution because while you're wearing your eyeglasses and you have the
I a glass chains attached you can actually let the chain hanging off the back
of your head and that the additional weight the additional weight from the
chain itself will counterbalance the front heaviness of your eyeglasses and ifyou're lucky your glasses won't slip but such a solution brings up its own
problems so you really only replacing one problem with another one and the
other one which I will talk about now is worse than that
