Adam, you are entitled to that opinion, but there is a sound basis for the gentleman's comments. Not to mention that Uncle Gizmo's reference to the Isaac Asimov classic double trilogy is appropriate as a relevant work.
It is a long-known fact in chemistry that you can use statistics to predict the behavior of molecules in an enclosed gas (i.e. gas in a closed container). From relatively simple statistical mechanics applied to a model that says each molecule in a homogeneous gas acts like a billiard ball at the atomic level, you can derive the infamous gas law: PV=nRT where pressure, volume, the number of molecules, and the Kelvin temperature are related to each other by the gas constant R. This is an example where the law of large numbers brings statistical validity to formulas that describe certain large collections. This treatment allows "outliers" (i.e. rogues) but still accurately predicts overall behavior because as the numbers get bigger, the average behavior predictions become more precise.
This is the power of math - that when you have a large enough group of anything, you can start to derive trends. Whether we are talking about the random movement of non-reactive molecules in a sealed jar or the flow of electrons through a communications cable or the firing of a transistor when enough current is applied to the base of that transistor, ALL of those things have statistical elements. When we talk about signal-to-noise ratios on a digital comm line or even a fiber channel line, we are REALLY discussing what is the limit for using that comm line based on the statistics of movement of very fast "things" (photons or electrons) that act as the signal carrier.
Asimov's work used a hypothetical study called "Psychohistory" to represent the statistical behavior of planetary populations of multiple billions of people within the galaxy where the total population was in the trillions. His hero, Harry Seldon, was able to predict a terrible collapse of the Empire (galactic-wide civilization) with a horrible "dark age" that would lead to human suffering. He used his math to predict a thousand-year course of action to rescue humanity from 10 to 30 thousand years of barbarism, to shorten the dark ages. You might say he was the ultimate social justice warrior in a lab coat. Now of course that was a novel, but Dr. Asimov was well-versed in many scientific processes and concepts. Therefore, his work is speculative - but not in the category of fantasy. More like true science fiction that speculates on the possible, not the magical.
We cannot forget that visionary sci-fi writers in the past have predicted: Cell phones (and particularly, flip phones); communications satellites; exoskeletal combat suits; robotic exploratory probes; Muzak and internet-based home music devices like Alexa and Siri; artificial intelligence; drone-based military actions... I could go on about this for a while but want to leave fun for others.
Adam, to quote the Bard of Avon: "There are more things in heaven and Earth, Horatio, than are dreamt of in your philosophy."