That does not seem true at all. The only two things that slow you down is: 1. The compile times. But those are comparable to C++. 2. The borrow checker and ow

That does not seem true at all. The only two things that slow you down is: 1. The compile times. But those are comparable to C++. 2. The borrow checker and ownership rules. But you get used to those rules and eventually they are ingrained far enough into your brain that you barely run into problems with them anymore. However one thing that is overlooked entirely here is that writing code doesn't just mean writing code, but also running and testing it, which due to the increased reliability are shorter if not even greatly shorter than most other languages. So especially compared to C and C++ you end up writing code a lot faster.