Yeah, it frustrates me that both Go and Rust have decided to require casting for all numeric conversions, whether there is a chance of information loss or not.

Yeah, it frustrates me that both Go and Rust have decided to require casting for all numeric conversions, whether there is a chance of information loss or not. This causes casting to proliferate, and you grow numb to it. If lossless conversions were implicit, then you would only need casts in potentially lossy situations so they would stand out more, and hopefully make you think harder about correctness.