tl;dr:"My goal is not to convince you that Go is an objectively bad language, it’s to convince you that for certain people, working in Go feels like a constant struggle against stupid constraints."
tl;dr:"The tradeoff between the computational power of a language and the ability to determine what a program in that language is doing." Built-in array functions like .map & .filter may seem powerful but reduce flexibility. Jesse recommends custom code for readability and error reduction.