Hey Yoric, I do not want to underplay what it is like to work with async, but I think there has been a lot of improvements to make it easier, especially in JavaScript/ECMAScript. It is nice not to have to work directly with promises in the same way that was required previously. The language has matured a lot since I started using in Netscape Navigator (I see you formerly worked at Mozilla). I think coding can be complicated in general, although it shouldn't have to be. I think having a mental model for async from the start can be helpful, and understanding the difference between blocking and non blocking code. A lot of people learned writing synchronous code first, so I think it can be hard to develop the mental model and intuit it.