I'm working through the #Rust book. Three things so far:

• I keep forgetting about adding semicolons
• if only accepts actual Booleans, and not anything looking truthly/falsely
• there is no explicit return statement, just the last expression is returned?!

I'm a Python guy, and Rust is so amusingly different, I need to consciously think about all the things that for me are muscle memory in the language I am used to.