Re: Fourth Industrial Revolution?
At some point, quantitative differences start to make a qualitative difference as well.
Yes, because more is different.
Mage does have a point: the "Industrial Revolution" only looks like a singular, relatively abrupt change due to historical distance and glossing over the details. Any real history of technological change in the modern era amply demonstrates that.
But as you note, gradual technological change does tend to produce occasional inflection points in economies and cultures, where within a generation the conditions of people's lives can change dramatically. There are any number of historians who have documented that process, too.