We're still in early stages, but in just 2 years AI has presented higher education with the single most disruptive change in decades. Now a computer can do your entire coursework for you, is available to converse on a broad range of topics, and can accomplish unaided huge open-ended problems.

> most other revolutionary technologies found their game changing, broad reaching applications by this point.

I think your timeline expectations are miscalibrated. The steam engine goes back centuries. Even in the mid 1700s to 1800s, advances in engine design were decades apart, and the logistics of building and deploying steam engines mandated an uptake in years, even in perfectly-fitted applications.

Like these applications where there were existing manual-labor solutions that not only fought the technology but were still competitive, AI and LLMs weren't born in a vacuum. In order to revolutionize, it must displace, and people are rightly finding ways to do their jobs in more productive ways that moderate adoption speed.

Can you name some other technologies that have exploded from 0 to billions of users in just 3 years?

Let's not forget the electric car... Still yet to be realized at scale but looking more likely.