> That is not realistic, but I suppose where things are heading ...
And to expand on this, it's not realistic because science is not armchair philosophy. You have to go out and measure the world.
Sometimes, through force of will, a person can think deeply about a problem and come up with beautiful theories that explain our measurements. Many scientists had careers like this, probably most famously, Einstein. But it's worth noting that Einstein also got a lot wrong! [1]
Even if we somehow give an LLM the ability to go out and measure things, I seriously doubt that the role of humans in science is done. There's a big difference between "an explanation" and "a good explanation." Ask any physicist. There's a surprising amount of aesthetics involved. Good theories are consistent with the evidence, but it's more than that-- there's a great deal of "taste" involved. And there's a good reason for that. For any real problem, there are effectively an infinite number of alternative hypotheses. From a "theory of science" standpoint, this should cause scientists nightmares, but it doesn't. Because by the time you are a practicing scientist, you've developed a feel for what constitutes a satisfying explanation. If you spend time with scientists, especially in the "hallway track" at a conference, "taste" is a frequent topic of conversation!
[1] https://en.wikipedia.org/wiki/Einstein%27s_unsuccessful_inve...