Comment by matt_kantor
6 days ago
Your position is confusing to me as well.
> if you put the work in you can get to a point where you are fast enough at reading and reviewing code
Please correct me if I'm wrong, but "fast enough" here would still be slower than writing the code yourself (given equal amounts of practice at reading and writing code), right? To throw some made-up numbers around: if it would take me 20 minutes to write code to do X, it might take me 30 minutes to read/review code that does X written by somebody else (or an LLM), so I'm at a net loss of 10 minutes. Can you explain the mechanism by which this eventually tips into a productivity gain?
Personally, I think "reading code is harder than writing code" lacks nuance. While I believe it's true on average, the actual difficulties vary wildly depending on the specific changeset and the path it took to get there. For example, writing code can involve exploring many solutions before eventually discovering a concise/simple one, but when reading the final changeset you don't see all those dead-end paths. And reviewing nontrivial code often involves asynchronous back and forth with the author, which is not a factor when writing code. But please take the "reading code is harder than writing code" claim for granted when responding to the above paragraph.
Maybe you're imagining a team context and accounting for the total time spent by the entire team, and also imagining that LLM changesets aren't first reviewed by you and submitted in your name (and then have to be reviewed again by somebody else), but rather an agent that's directly opening pull requests which only get a single review pass?
It's more like it takes me five minutes to read code that would have taken me an hour to write.
Ah, then it seems like you don't agree that reading code is harder than writing code (for you). Or maybe you're decoupling hardness from time (so it's five difficult minutes vs an easy hour).
For the first 15 years of my career I found reading code much harder than writing code. Then I invested a lot of effort in improving my code reading and code reviewing skills, with the result that code reading no longer intimidates me like it used to.
That's why I think reading is harder than writing: it takes a whole lot more effort to learn code reading skills, in my experience.
5 replies →