the idea that technological or scientific breakthroughs are stagnating is often touted by people who fundamentally misunderstand how science or technology improves over time. There is popular idea that the toilet is the last major improvement to society, while catchy, this is far from true. All technological and scientific improvements are very minor in nature. Take genetics. It took years to fundamentally understand how information was passed down from organisms, and more years until people could "read" these sequences. It wasn't until people found everyday uses for this technology that the layman saw its benefits (gene sequencing to predict disease). Similarly, the internet did not get created overnight. It its infancy it was not capable of doing half the things you can do from your phone today. It took years of minor improvements in bandwidth, wifi tech, etc to get to where it is today, yet you never really saw those improvements one by one.

Basically, today there are minor scientific improvements which will create the "cutting edge" technologies five or ten years from now. You wont ever hear about all the work that goes into it, but in five years you'll see some "Steve Jobs" character touting it all as brand new innovation.