Millises elutsükli etapis käivitatakse Go-s goroutine?

Goroutine in Go starts at the moment when the go keyword is called before a function or method. This happens during program execution, when the control flow reaches this statement. For example:

func sayHello() {
    fmt.Println("Hello")
}

func main() {
    go sayHello() // here the goroutine starts
    // the main function can continue working
}

Thus, the goroutine starts dynamically during execution, not at compile or initialization time.