Technology changes not when it might but when it must.
Sensitive people note problems and talk about them. Writers and other influential people talk it up. Crusades are launched. And these crusades create counter-crusades. The argument soars in the media. And for a while it seems as if nothing will ever be done. But gradually, as the threat becomes more tangible, the counter-arguments subside. Laws are written. Treaties are signed. But still no great progress is made. Finally, the general population begins to make changes. But these changes don’t happen until the threat becomes tangible to the affected population.