I imagine this to be a more universal thing: It is impossible to imagine a live without Facebook. But it has been basically impossible to imagine a live with Facebook before there was any and just as quickly you will forget how inevitable and necessary it felt while it was there – once it loses its role. And I hope that this applies not only to individuals but also to societies.
I guess we will find out in the near future to just how many things this principle applies, for example petrol fuels, casual international flights and video platforms. Quitting Facebook Blue has shown me that to unlearn something is just as easy as it is to learn it. This is not nicotine or alcohol. This is just a mode of doing something you do anyways.