[stpedgwdgfhgdd]

“We typically making very very detailed plans” - this is writing code in English without tests. Admittedly, since generating code is faster, you get faster feedback. Still, I do not think it as efficient as an incremental, test driven approach. Here you can optimize early on for the feedback loop.

[Cthulhu_]

You get faster feedback in code, but you won't know if it actually does what it's supposed to do until it's in production. I don't believe (but have no numbers) LLMs speed up the feedback loop.