Transistors doubled for so long, but pretty much no other technology has come close, so it’s not like going to improve for very long, which is far more common. Transistors only did it due to a quirk in physics, that of electrons being long lasting, super tiny, and fairly controllable. We’re out of such particles to make another set of leaps.
For data bound things, there’s also fundamental laws of information theory, far stronger than physics theories, since they’re theorems about math. And LLMs can only compress knowledge so far, and we’re about at it now.