cool.  If I have this coroutine:
launch(Dispatchers.io()) {
    val result = networkCall() // line A
    val str = "My name is $result.name" // line B
}
Would it be accurate to say line A is a blocking call in Dispatchers.io()?

ok.  When you say "depending on what else is going on, Kotlin may not execute networkCall() right away", is this why in your example

fun main() { GlobalScope.launch(Dispatchers.Main) {
    println("This is executed before the first delay") // line A
    stallForTime() // line B
    println("This is executed after the first delay") // line C
}
  GlobalScope.launch(Dispatchers.Main) {
    println("This is executed before the second delay") // line D
    stallForTime() // line E
    println("This is executed after the second delay") // line F
}
  println("This is executed immediately") // line E
}

...