flying under the radar that are mounting and compounding to come together to create the technological revolution.

It started with the microchip and is plateauing with block chain, with smaller and smaller incremental builds on the already designed structure (microchip and digital).
Revolution in tech has already happened - we are now just building on it.

A possible declining trend for worldwide innovationJonathan HuebnerTReceived 10 September 2004; received in revised form 3 January 2005; accepted 18 January 2005AbstractA comparison is made between a model of technology in which the level of technology advances exponentially without limit and a model with an economic limit. .
..... We are at an estimated 85% of the economic limit of technology, and it is projected that we will reach 90% in 2018 and 95% in 2038.....
.....There is a general consensus that technology is advancing exponentially, and that this advance will continue into the distant future. The basic assumption behind this view is that either there is no limit to technological advance, or if there is a limit, then we are far from reaching it.

....The history of technological innovation from the end of the Dark Ages to the present time is examined, and evidence is provided that we are closer to a technological limit than many people realize.

https://accelerating.org/articles/InnovationHuebnerTFSC2005.pdf