I too find ChatGPT useful for programming, but: >All told, this took about 2.5 hours. >And all I did was end up with a model very similar to one I wrote by han

I too find ChatGPT useful for programming, but: >All told, this took about 2.5 hours. >And all I did was end up with a model very similar to one I wrote by hand several months ago. >But that one took me something like six hours! So 2.5 hours is a huge speedup. It's likely that the attempt being the second time explains 80% of the time reduction. Design and implementation is a learning process, and you being it through once will speed it up massively.