The whole point of his experiment was to learn about the ergonomics of these languages, to investigate the hype. If you did the experiment and say, found that

The whole point of his experiment was to learn about the ergonomics of these languages, to investigate the hype. If you did the experiment and say, found that Rust was super easy, then you could avoid GC and get some free efficiency. If you found that Rust was hard, then you know only to use it when you NEED the efficiency.