Some people who come to rest may not be fine with it. A lot of people come to rust for other reasons, like compile time safety checks etc... But most importan

Some people who come to rest may not be fine with it. A lot of people come to rust for other reasons, like compile time safety checks etc... But most importantly, the delta between the performance of block_on and not, versus block_on and Python are massively different. You can write inefficient rust and still have a huge win over Python.