Your whole argument is based on 'the technology improves'.

Ok, so another fundamental proposition is monetary resources are needed to fund said technology improvement.

Whats wrong with LLMs? They require immense monetary resources.

Is that a problem for now? No because lots of private money is flowing in and Google et al have the blessing of their shareholders to pump up the amount of cash flows going into LLM based projects.

Could all this stop? Absolutely, many are already fearing the returns will not come. What happens then? No more huge technology leaps.

This has literally never happened in the history of humanity. Name one technology where development permanently stopped due to lack of funding, despite there being...

1. lots of room for progress, i.e. the theoretical ceiling dwarfed the current capabilities

2. strong incentives to continue development, i.e. monetary or military success

3. no obviously better competitors/alternatives

4. social/cultural tolerance from the public

Literally hasn't happened. Even if you can find 1 or 2 examples, they are dwarfed by the hundreds of counter examples. But more than likely, you won't find any examples, or you'll just find something recent where progress is ongoing.

Useful technology with room to improve almost always improves, as people find ways to make it better and cheaper. AI costs have already fallen dramatically since LLMs first burst on the scene a few years back, yet demand is higher than ever, as consumers and businesses are willing to pay top dollar for smarter and better models.