I'm not sure that "radical" apps aren't more often built because we don't know how, than because we don't have the time, funding, or risk budget to do it.

For those cases, I think LLM-assisted coding has the ability to drastically change the usual formula and help bring into being projects that people would previously only daydream about, hoping that the world aligns with their vision one day and they can magically spin up a team to work on it.

Coding agents are fast becoming at least a part of that team. If you're idea is in a domain where they've had a lot of high-quality training code, they can already do a pretty amazing job of getting a project off the ground. If you're a programmer with at least some domain knowledge and can guide the design and push the agent past tough spots, you can keep the project going when the LLMs get bogged down.

I think at the very least, we're going to see some incredibly impressive prototypes, if not complete implementations, of OSes, programming languages, hypermedia systems, protocols, etc. because one passionate programmer threw a lot of LLM time them.

Basically lots of people are going to be able to build their own TempleOS now. Some of those might end up being impactful.