> Maybe one can transform slow code from high level languages to low level language via LLMs in future.

This is one of the areas I'm most excited for LLM developer tooling. Choosing a language, database, or framework is a really expensive up-front decision for a lot of teams, made when they have the least information about what they're building, and very expensive to take back.

If LLM-powered tools could take 10-100x off the cost of these migrations, it would significantly reduce the risk of early decisions, and make it a ton easier to make software more reliable and cheaper to run.

It's very believable to me that, even with today's model capabilities, that 10-100x is achievable.