Are we living in a revolutionary age?

"A good test that anyone can make when his time comes: if a man in the fullness of his days, at the end of his life, can pass on the wisdom of his accumulated experience to those who grow up after him; if what he has learned in his youth, added to but not discarded in his maturity, still serves him in his old age, and is still worth teaching the then-young, then his was not an age of revolution… The world into which his children enter is still his age not because it is entirely unchanged, but because the changes that did occur were gradual and limited enough to allow him to absorb them into his initial stock and keep abreast of them. If, however, a man in his advancing years has turned to his children, or grandchildren, to have them tell him what the present is about; if his own acquired knowledge and understanding no longer avail him; if at the end of his days he finds himself to be obsolete rather than wise, then we may term the rate and scope of change that overtook him “revolutionary”."

- Hans Jonas.

Sometimes, revolutions can happen without much attention being paid to them.
H/T Andrew Errington.