Buddhist author and activist Joanna Macy:
Until the late twentieth century, every generation throughout history lived with the tacit certainty that there would be generations to follow. Each assumed, without questioning, that its children and children’s children would walk the same Earth, under the same sky … That certainty is now lost to us, whatever our politics. That loss, unmeasured and immeasurable, is the pivotal psychological reality of our time.
Doesn’t make for comforting reading, but the truth of this resonates.