I have spent years campaigning on social justice issues concerning the rights of women and girls. I feel driven by the conviction that it is essential to try, with the hope that with collective effort, things can be improved — while motivated by a combination of outrage and empathy. But rarely does a moment occur when, as an activist, I sense that seismic change might be in the air. This week will be one of those moments. I’m writing to say that we must seize it.