I had almost that exact arrangement in a working draft, but went back from "otherwise" to "if" because it would be the only use of the word in the spec and, for me at least, began mirroring `if/else` blocks which suggested code structure. Also, the nesting started to get a little deep (the irony). The bullets *are* exclusive of one another, so "otherwise" does makes sense. Other opinions?

The point about accessing `then` only once being in the spec vs in the notes I'm on the fence about. Like `thenable.then(resolvePromise2, rejectPromise2)` it is an implementation detail, not a rule, technically. The justification for it is good, albeit edge-casey. I'm willing to go with whichever placement is deemed best.